Deck 19: Musculoskeletal System

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Question
What is the order you would encounter these tissues entering from the outside of the end of a long bone of the arm?

A)articular cartilage \rightarrow spongy bone \rightarrow marrow \rightarrow periosteum
B)articular cartilage \rightarrow periosteum \rightarrow spongy bone \rightarrow marrow
C)periosteum \rightarrow articular cartilage \rightarrow spongy bone \rightarrow marrow
D)articular cartilage \rightarrow marrow \rightarrow spongy bone \rightarrow periosteum
E)spongy bone \rightarrow articular cartilage \rightarrow periosteum \rightarrow marrow
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Question
Scientists utilize carpet beetles to reduce an animal carcass to bones.Unlike bacteria that decompose all softer tissues,the beetles leave the bones of the skeleton connected to one another.Therefore,they have avoided consuming the

A)ligaments.
B)tendons.
C)spongy bone.
D)marrow.
E)periosteum.
Question
Which of the following bones is NOT part of the axial skeleton?

A)ribs
B)sternum
C)scapula
D)vertebrae
E)skull
Question
Bone-forming cells are termed

A)chondrocytes.
B)blood cells.
C)osteoclasts.
D)osteocytes.
E)osteoblasts.
Question
Which of the following is NOT a correct association?

A)fibrocartilage-thick collagen fibers
B)elastic cartilage-flexible ear flaps
C)hyaline cartilage-larynx and trachea
D)articular cartilage-a type of elastic cartilage
E)hyaline cartilage-appears uniform and glassy
Question
What begins as stem cells in the red bone marrow and then specializes to break down bone and release the calcium into the blood?

A)menisci
B)chondrocytes
C)osteoclasts
D)osteoblasts
E)sarcomeres
Question
In modern surgery,it is possible to lengthen a short leg bone because new bone tissue can rapidly grow to fill a cavity.However,it would be important to

A)administer a chemical to kill all osteoblasts.
B)leave the periosteum intact to provide nutrients and define the boundary for bone growth.
C)ensure the growth plates are all ossified.
D)remove calcium from the diet.
E)remove the red bone marrow from the bone.
Question
All types of cartilage are associated with bones.
Question
Which is NOT a correct association of bone structures and functions?

A)osteoblasts-cells that build up bone tissue
B)osteoclasts-cells that break down bone tissue
C)osteons-tubular units of compact bone
D)canaliculi-holes through which blood vessels run
E)lacunae-tiny chambers in concentric circles around a central canal
Question
Which of the following attach muscle to bone?

A)ligaments
B)joints
C)tendons
D)adipose tissue
E)sarcomere
Question
What structure allows the distribution of nutrients to osteocytes?

A)canaliculi
B)spongy bone
C)osteoblasts
D)growth plates
E)diaphysis
Question
Which one of the following is NOT a part of the appendicular skeleton?

A)ribs
B)fibula
C)humerus
D)coxal
E)radius
Question
Which of the following is NOT a function of bones?

A)provide protection
B)provide support
C)allow flexible and controlled movement
D)provide a storehouse of inorganic salts
E)provide a nonliving architecture to build the body around
Question
Jeremy has broken his leg during a soccer match.Although this is bad,from a healing standpoint,it is not as bad as if he had torn his cartilage.
Question
Which of these would you NOT expect to find in a long bone?

A)compact bone
B)spongy bone
C)sarcomeres
D)cartilage
E)medullary cavity
Question
The type of bone tissue that has lacunae,concentric circles around a central canal,and are found in the middle portion of a long bone is

A)spongy bone.
B)compact bone.
C)red marrow.
D)yellow marrow.
E)epiphyses.
Question
In young persons who are still developing,what is the band of cartilage called that remains between the primary ossification center and each secondary ossification center?

A)chondrocytic mediastinum
B)osteoclastic border
C)osteon promoter
D)fontanel
E)growth plate
Question
What cell type takes calcium from the blood? What cell type deposits calcium into the blood?

A)osteoclasts; osteoblasts
B)osteocytes; osteoclasts
C)osteocytes; osteoblasts
D)osteoblasts; osteocytes
E)osteoblasts; osteoclasts
Question
A red bone marrow transplant would be used to

A)increase fat storage.
B)supply bone forming material or osteoblasts.
C)supply blood cell forming material.
D)help bones grow longer.
E)increase the amount of dense fibrous connective tissue.
Question
If your bones were "pulled out," you would perhaps resemble a large pancake with eyes.Which of the following would NOT be affected?

A)substantial body movement (walking,etc.)
B)storage of calcium,phosphorus,and fat
C)blood cell production
D)protection of brain and other soft organs
E)detection of stimuli
Question
The origin of a muscle is found on the bone that moves.
Question
Which of these bones is found in the pelvic girdle?

A)humerus
B)ulna
C)femur
D)coxal
E)tibia
Question
Which bone is the only bone in the body that does not articulate with another bone?

A)zygomatic bone
B)mandible
C)floating rib
D)hyoid bone
E)wrist bone
Question
The patella is primarily held in place by tendons that attach it to the

A)femur.
B)fibula.
C)tibia.
D)calcaneus.
E)tarsal bones.
Question
The radius is to the ulna as the

A)tibia is to the femur.
B)fibula is to the ulna.
C)fibula is to the tibia.
D)humerus is to the femur.
E)humerus is the radius.
Question
The radius bone in Figure 19.1 is the bone labeled

A)a
B)b
C)c
D)d
E)e
Question
The humerus bone in Figure 19.1 is the bone labeled

A)a
B)b
C)c
D)d
E)e
Question
Classification of joints is based on

A)their location in the body.
B)the presence or absence of tendons.
C)their ability to move.
D)the length of bones concerned.
E)the type of muscles attached.
Question
What disease is an abnormal lateral curvature of the spine?

A)rheumatoid arthritis
B)bursitis
C)osteoarthritis
D)osteoporosis
E)scoliosis
Question
When the biceps brachii contracts,the lower arm extends.
Question
The joints found between the vertebrae are classified as being

A)immovable.
B)slightly movable.
C)freely movable.
D)synovial joints.
E)discoidal.
Question
In Hong Kong,as in many Asian countries,there is not enough countryside to have everyone buried in cemeteries.Therefore,they require reburial of the human bones only in an ossarium,a wall that consists of many shoe box-sized cubicles,or concrete boxes,that hold all of the bones intact but disarticulated.The size of this box is about 10 inches high,12 inches wide,and about 2 feet long.What are the largest skeletal structures that will determine the size of the box?

A)humerus and skull
B)ulna and pelvis
C)femur and skull
D)femur and pelvis
E)tibia and humerus
Question
A structure that reduces the weight of the skull and drains into the middle ear would be

A)a fontanel.
B)a diaphysis.
C)yellow bone marrow.
D)red bone marrow.
E)a sinus.
Question
Which of the following is NOT true about the vertebrae?

A)They are part of the appendicular skeleton.
B)They form a dorsal backbone.
C)They help form four curvatures of the spine.
D)They are separated by intervertebral disks.
E)They help protect the spinal cord.
Question
The knee is an example of a(n)

A)immovable joint.
B)slightly movable joint.
C)fibrous joint.
D)immovable synovial joint.
E)movable,synovial joint.
Question
Which is NOT a correct association of facial bones?

A)zygomatic bones-bridge of the nose
B)mandible-lower jaw
C)maxillae-upper jaw and hard palate
D)temporal-temples
E)frontal-forehead
Question
The correct order of regions of vertebrae,from superior to inferior,is

A)thoracic \rightarrow lumbar \rightarrow sacrum \rightarrow cervical \rightarrow coccyx.
B)cervical \rightarrow lumbar \rightarrow sacrum \rightarrow thoracic \rightarrow coccyx.
C)cervical \rightarrow thoracic \rightarrow lumbar \rightarrow sacrum \rightarrow coccyx.
D)lumbar \rightarrow sacrum \rightarrow cervical \rightarrow thoracic \rightarrow coccyx.
E)sacrum \rightarrow cervical \rightarrow thoracic \rightarrow lumbar \rightarrow coccyx.
Question
If you change your hands from a position where they are folded together to where they are cupped to collect a handful of water,you have mainly rotated which arm bone(s)?

A)humerus
B)scapula
C)ulna
D)radius
E)carpels
Question
The crescent-shaped pieces of cartilage between the bones in the knee are called

A)ligaments.
B)tendons.
C)patellas.
D)bursae.
E)menisci.
Question
Which of the following would NOT be found in the pectoral girdle and associated appendages?

A)clavicle
B)scapula
C)humerus
D)tibia
E)phalanges
Question
Which of the following will increase during strenuous muscular activity?

A)oxygen
B)carbon monoxide
C)lactic acid
D)liver glycogen
E)myosin
Question
The muscle action potential will cause the sarcoplasmic reticulum to release calcium ions when stimulated directly by the

A)sarcolemma.
B)neuromuscular junction.
C)tropomyosin.
D)axon terminal.
E)T tubule.
Question
Which of these gives the correct order from large to small?

A)muscle \rightarrow muscle cell \rightarrow myofibril \rightarrow sarcomeres \rightarrow filaments
B)muscle \rightarrow muscle fibers \rightarrow sarcomeres \rightarrow filaments \rightarrow myofibrils
C)muscle \rightarrow sarcomeres \rightarrow myofibrils \rightarrow actin filaments \rightarrow myosin filaments
D)muscle cells \rightarrow myofibrils \rightarrow filaments \rightarrow sarcomeres
E)muscle \rightarrow myofibrils \rightarrow sarcomeres \rightarrow muscle cells \rightarrow filaments
Question
The antagonistic muscle to the quadriceps femoris group is the gastrocnemius.
Question
What is the correct order of structures that a motor nerve stimulation encounters when triggering a contraction?

A)motor nerve \rightarrow synaptic cleft \rightarrow sarcoplasmic reticulum \rightarrow sarcolemma \rightarrow troponin
B)motor nerve \rightarrow synaptic cleft \rightarrow sarcolemma \rightarrow sarcoplasmic reticulum \rightarrow troponin
C)motor nerve \rightarrow sarcoplasmic reticulum \rightarrow synaptic cleft \rightarrow sarcolemma \rightarrow troponin
D)motor nerve \rightarrow sarcolemma \rightarrow sarcoplasmic reticulum \rightarrow synaptic cleft \rightarrow troponin
E)motor nerve \rightarrow sarcolemma \rightarrow synaptic cleft \rightarrow sarcoplasmic reticulum \rightarrow troponin
Question
Timothy has really "ripped" abdominal muscles.What muscle(s)has he exercised extensively to get that appearance?

A)rectus abdominis
B)biceps brachii
C)latissimus dorsi
D)external oblique
E)adductor longus
Question
What is the name of the muscle that you sit on?

A)deltoid
B)quadriceps femoris group
C)hamstring group
D)gluteus maximus
E)pectoralis major
Question
Which of the following criteria is not used in the naming of muscles?

A)size
B)shape
C)location
D)name(s)of the bone(s)it attaches to
E)number of attachments
Question
Skeletal muscles

A)are found in and about internal organs.
B)work in antagonistic pairs.
C)never get longer when they contract.
D)contain calcium throughout the cell.
E)have the same origin and insertion point.
Question
Which statement is NOT true regarding cross bridges?

A)They involve the use of Ca2+.
B)They are used to split ATP.
C)They form a complex with actin.
D)They are extensions of myosin molecules.
E)They attach to active sites on myosin.
Question
The conversion that supplies the required energy for muscle contraction might be illustrated as

A)ATP \rightarrow ADP + (P).
B)AMP \rightarrow ATP.
C)glucose \rightarrow O2 + lactic acid.
D)O2 \rightarrow lactic acid + CO2.
E)glucose + O2 \rightarrow water + lactic acid.
Question
Which molecule can be used directly to regenerate ATP?

A)ADP
B)glucose
C)lactate
D)creatine phosphate
E)tropomyosin
Question
Name the neuromuscular transmitter that is released at the axon terminal.

A)sodium ions
B)calcium ions
C)ATP
D)creatine phosphate
E)acetylcholine
Question
In contraction

A)the thin filaments become shorter.
B)the thin filaments become longer.
C)the thick filaments become shorter.
D)the thick filaments become longer.
E)neither of the filaments change length.
Question
Actin and myosin filaments are both present in the dense region called the

A)A band.
B)Z line.
C)H zone.
D)I band.
E)M band.
Question
Oxygen debt may be associated with

A)low oxygen demand by the cells.
B)lactic acid buildup.
C)too much oxygen in the body.
D)too little carbon dioxide in the body.
E)failure to convert potential energy into kinetic energy.
Question
In an accident,the extensor muscles across the back of the fingers of one hand are completely severed.What is the result if no surgery is done to rejoin them?

A)The fingers will dangle and extend out limp.
B)The fingers will curl and remain permanently flexed.
C)The fingers will forcibly extend and remain extended.
D)Hand movements will continue as before the accident.
E)It depends on how the muscles heal.
Question
A neuromuscular junction operates much like a synapse between two nerve cells.
Question
The plasma membrane of a muscle cell is called a sarcolemma.
Question
The deltoid muscle is shaped like a triangle.
Question
Which is NOT a correct association of diseases and description or symptoms?

A)atrophy-decrease in size of muscles from lack of use or stimulation
B)fibromyalgia-chronic pain in the muscles and ligaments
C)osteoarthritis-degenerative joint disease
D)osteoporosis-weakening or thinning of bone sometimes due to low estrogen levels
E)rheumatoid arthritis-simple wear and tear on joints
Question
Which part of a muscle twitch occurs when the sarcomere distance is decreasing?

A)latent period
B)contraction period
C)relaxation period
D)refractory period
E)expansion period
Question
If all of the muscle fibers in the neck,trunk,and legs were to totally relax,the body would collapse.What is the state called where some of the fibers in a particular muscle are always contracted?

A)twitch
B)threshold
C)tetanus
D)tone
E)summation
Question
Which is not true of osteoarthritis?

A)typically begins after age 40
B)is more common than rheumatoid arthritis
C)may be treated by replacing damaged joints
D)may be caused by overuse of a joint
E)result of the immune system attacking the joints
Question
Depending on the degree of stimulation,more and more individual muscle fibers contract,resulting in a stronger muscle contraction.
Question
In the movies,there are often scenes where someone is holding a person to prevent them from falling.All of a sudden,the person's grip gives way and the other person falls.What is this most likely due to?

A)The person changes their mind and lets go.
B)Fatigue,following sustained muscle contraction,is apparent when a muscle relaxes even though stimulation continues.
C)A muscle twitch has a contraction period followed by a relaxation period.
D)Some of the muscle fibers contract while others relax at any given time.When more muscle fibers relax than contract,the grip would be broken.
E)The slow-twitch muscle fibers take over after the fast-twitch muscle fibers fail.These do not have the same strength and endurance as the fast-twitch fibers and the person lets go.
Question
A muscle cramp happens when the actin and myosin filaments "seize up."
Question
If an athlete is training for the Olympic weight lifting team,what type of exercising should they be doing?

A)Their training routine should include weight lifting,sprinting,or any other type of activity that requires an explosion of energy in order to increase their fast-twitch fibers.
B)Their training routine should include weight lifting,sprinting,or any other type of activity that requires an explosion of energy in order to increase their slow-twitch fibers.
C)Their training routine should include swimming,biking,jogging,and any other type of activity that requires an explosion of energy in order to increase their fast-twitch fibers.
D)Their training routine should include swimming,biking,jogging,and any other type of activity that produces their energy aerobically in order to increase their slow-twitch fibers.
Question
Jack broke his right leg in a football accident.He has had a cast on for about 2 months.Now that the cast is off,Jack has found that his right calf is significantly smaller than his left calf.Why is this?

A)The unused right calf atrophied.
B)When you break a bone,the attached muscle is also torn.Therefore,it gets smaller.
C)Calf muscles are composed of fast-twitch fibers and tend to grow larger over time.
D)The left calf probably hypertrophied in compensating for the broken leg during walking.
E)This is highly unusual and suggests some type of muscle disease.
Question
Judo is a sport that requires an explosion of energy rather than endurance.The better type of muscle would be

A)slow-twitch fibers with many mitochondria and high blood supply.
B)slow-twitch fibers with fewer mitochondria and lower blood supply.
C)fast-twitch fibers with many mitochondria and high blood supply.
D)fast-twitch fibers with fewer mitochondria and lower blood supply.
E)fast-twitch fibers with a reserve of glycogen and fat.
Question
In a complete bone fracture,the break does not pass all the way through the bone.
Question
Muscles that are not used or used for very weak contractions experience hypertrophy.
Question
What problems would occur if an individual were to tear their biceps brachii?

A)They would be unable to flex the forearm.
B)They would be unable to extend the forearm.
C)They would be unable to abduct their arm.
D)They would be able to curl their fingers.
E)All of the answer choices could not be performed.
Question
Which of the following can prevent osteoporosis?

A)aspirin therapy
B)estrogen replacement therapy
C)treatment with chondroitin sulfate
D)treatment with glucosamine
E)treatment with corticosteroids
Question
What is the condition in many older women in which the bones become weak and thin?

A)rheumatoid arthritis
B)bursitis
C)osteoarthritis
D)osteoporosis
E)meningitis
Question
A muscle but not the muscle fiber will obey the all-or-none law.
Question
A maximal sustained muscle contraction is called

A)a twitch.
B)a threshold.
C)tetanus.
D)tone.
E)summation.
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Deck 19: Musculoskeletal System
1
What is the order you would encounter these tissues entering from the outside of the end of a long bone of the arm?

A)articular cartilage \rightarrow spongy bone \rightarrow marrow \rightarrow periosteum
B)articular cartilage \rightarrow periosteum \rightarrow spongy bone \rightarrow marrow
C)periosteum \rightarrow articular cartilage \rightarrow spongy bone \rightarrow marrow
D)articular cartilage \rightarrow marrow \rightarrow spongy bone \rightarrow periosteum
E)spongy bone \rightarrow articular cartilage \rightarrow periosteum \rightarrow marrow
articular cartilage \rightarrow periosteum \rightarrow spongy bone \rightarrow marrow
2
Scientists utilize carpet beetles to reduce an animal carcass to bones.Unlike bacteria that decompose all softer tissues,the beetles leave the bones of the skeleton connected to one another.Therefore,they have avoided consuming the

A)ligaments.
B)tendons.
C)spongy bone.
D)marrow.
E)periosteum.
A
3
Which of the following bones is NOT part of the axial skeleton?

A)ribs
B)sternum
C)scapula
D)vertebrae
E)skull
C
4
Bone-forming cells are termed

A)chondrocytes.
B)blood cells.
C)osteoclasts.
D)osteocytes.
E)osteoblasts.
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5
Which of the following is NOT a correct association?

A)fibrocartilage-thick collagen fibers
B)elastic cartilage-flexible ear flaps
C)hyaline cartilage-larynx and trachea
D)articular cartilage-a type of elastic cartilage
E)hyaline cartilage-appears uniform and glassy
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6
What begins as stem cells in the red bone marrow and then specializes to break down bone and release the calcium into the blood?

A)menisci
B)chondrocytes
C)osteoclasts
D)osteoblasts
E)sarcomeres
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k this deck
7
In modern surgery,it is possible to lengthen a short leg bone because new bone tissue can rapidly grow to fill a cavity.However,it would be important to

A)administer a chemical to kill all osteoblasts.
B)leave the periosteum intact to provide nutrients and define the boundary for bone growth.
C)ensure the growth plates are all ossified.
D)remove calcium from the diet.
E)remove the red bone marrow from the bone.
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k this deck
8
All types of cartilage are associated with bones.
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9
Which is NOT a correct association of bone structures and functions?

A)osteoblasts-cells that build up bone tissue
B)osteoclasts-cells that break down bone tissue
C)osteons-tubular units of compact bone
D)canaliculi-holes through which blood vessels run
E)lacunae-tiny chambers in concentric circles around a central canal
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10
Which of the following attach muscle to bone?

A)ligaments
B)joints
C)tendons
D)adipose tissue
E)sarcomere
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11
What structure allows the distribution of nutrients to osteocytes?

A)canaliculi
B)spongy bone
C)osteoblasts
D)growth plates
E)diaphysis
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12
Which one of the following is NOT a part of the appendicular skeleton?

A)ribs
B)fibula
C)humerus
D)coxal
E)radius
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13
Which of the following is NOT a function of bones?

A)provide protection
B)provide support
C)allow flexible and controlled movement
D)provide a storehouse of inorganic salts
E)provide a nonliving architecture to build the body around
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14
Jeremy has broken his leg during a soccer match.Although this is bad,from a healing standpoint,it is not as bad as if he had torn his cartilage.
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15
Which of these would you NOT expect to find in a long bone?

A)compact bone
B)spongy bone
C)sarcomeres
D)cartilage
E)medullary cavity
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16
The type of bone tissue that has lacunae,concentric circles around a central canal,and are found in the middle portion of a long bone is

A)spongy bone.
B)compact bone.
C)red marrow.
D)yellow marrow.
E)epiphyses.
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17
In young persons who are still developing,what is the band of cartilage called that remains between the primary ossification center and each secondary ossification center?

A)chondrocytic mediastinum
B)osteoclastic border
C)osteon promoter
D)fontanel
E)growth plate
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18
What cell type takes calcium from the blood? What cell type deposits calcium into the blood?

A)osteoclasts; osteoblasts
B)osteocytes; osteoclasts
C)osteocytes; osteoblasts
D)osteoblasts; osteocytes
E)osteoblasts; osteoclasts
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19
A red bone marrow transplant would be used to

A)increase fat storage.
B)supply bone forming material or osteoblasts.
C)supply blood cell forming material.
D)help bones grow longer.
E)increase the amount of dense fibrous connective tissue.
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k this deck
20
If your bones were "pulled out," you would perhaps resemble a large pancake with eyes.Which of the following would NOT be affected?

A)substantial body movement (walking,etc.)
B)storage of calcium,phosphorus,and fat
C)blood cell production
D)protection of brain and other soft organs
E)detection of stimuli
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k this deck
21
The origin of a muscle is found on the bone that moves.
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22
Which of these bones is found in the pelvic girdle?

A)humerus
B)ulna
C)femur
D)coxal
E)tibia
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23
Which bone is the only bone in the body that does not articulate with another bone?

A)zygomatic bone
B)mandible
C)floating rib
D)hyoid bone
E)wrist bone
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24
The patella is primarily held in place by tendons that attach it to the

A)femur.
B)fibula.
C)tibia.
D)calcaneus.
E)tarsal bones.
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25
The radius is to the ulna as the

A)tibia is to the femur.
B)fibula is to the ulna.
C)fibula is to the tibia.
D)humerus is to the femur.
E)humerus is the radius.
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26
The radius bone in Figure 19.1 is the bone labeled

A)a
B)b
C)c
D)d
E)e
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27
The humerus bone in Figure 19.1 is the bone labeled

A)a
B)b
C)c
D)d
E)e
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28
Classification of joints is based on

A)their location in the body.
B)the presence or absence of tendons.
C)their ability to move.
D)the length of bones concerned.
E)the type of muscles attached.
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Unlock Deck
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29
What disease is an abnormal lateral curvature of the spine?

A)rheumatoid arthritis
B)bursitis
C)osteoarthritis
D)osteoporosis
E)scoliosis
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30
When the biceps brachii contracts,the lower arm extends.
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31
The joints found between the vertebrae are classified as being

A)immovable.
B)slightly movable.
C)freely movable.
D)synovial joints.
E)discoidal.
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32
In Hong Kong,as in many Asian countries,there is not enough countryside to have everyone buried in cemeteries.Therefore,they require reburial of the human bones only in an ossarium,a wall that consists of many shoe box-sized cubicles,or concrete boxes,that hold all of the bones intact but disarticulated.The size of this box is about 10 inches high,12 inches wide,and about 2 feet long.What are the largest skeletal structures that will determine the size of the box?

A)humerus and skull
B)ulna and pelvis
C)femur and skull
D)femur and pelvis
E)tibia and humerus
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33
A structure that reduces the weight of the skull and drains into the middle ear would be

A)a fontanel.
B)a diaphysis.
C)yellow bone marrow.
D)red bone marrow.
E)a sinus.
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34
Which of the following is NOT true about the vertebrae?

A)They are part of the appendicular skeleton.
B)They form a dorsal backbone.
C)They help form four curvatures of the spine.
D)They are separated by intervertebral disks.
E)They help protect the spinal cord.
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35
The knee is an example of a(n)

A)immovable joint.
B)slightly movable joint.
C)fibrous joint.
D)immovable synovial joint.
E)movable,synovial joint.
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36
Which is NOT a correct association of facial bones?

A)zygomatic bones-bridge of the nose
B)mandible-lower jaw
C)maxillae-upper jaw and hard palate
D)temporal-temples
E)frontal-forehead
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37
The correct order of regions of vertebrae,from superior to inferior,is

A)thoracic \rightarrow lumbar \rightarrow sacrum \rightarrow cervical \rightarrow coccyx.
B)cervical \rightarrow lumbar \rightarrow sacrum \rightarrow thoracic \rightarrow coccyx.
C)cervical \rightarrow thoracic \rightarrow lumbar \rightarrow sacrum \rightarrow coccyx.
D)lumbar \rightarrow sacrum \rightarrow cervical \rightarrow thoracic \rightarrow coccyx.
E)sacrum \rightarrow cervical \rightarrow thoracic \rightarrow lumbar \rightarrow coccyx.
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38
If you change your hands from a position where they are folded together to where they are cupped to collect a handful of water,you have mainly rotated which arm bone(s)?

A)humerus
B)scapula
C)ulna
D)radius
E)carpels
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39
The crescent-shaped pieces of cartilage between the bones in the knee are called

A)ligaments.
B)tendons.
C)patellas.
D)bursae.
E)menisci.
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40
Which of the following would NOT be found in the pectoral girdle and associated appendages?

A)clavicle
B)scapula
C)humerus
D)tibia
E)phalanges
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41
Which of the following will increase during strenuous muscular activity?

A)oxygen
B)carbon monoxide
C)lactic acid
D)liver glycogen
E)myosin
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42
The muscle action potential will cause the sarcoplasmic reticulum to release calcium ions when stimulated directly by the

A)sarcolemma.
B)neuromuscular junction.
C)tropomyosin.
D)axon terminal.
E)T tubule.
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43
Which of these gives the correct order from large to small?

A)muscle \rightarrow muscle cell \rightarrow myofibril \rightarrow sarcomeres \rightarrow filaments
B)muscle \rightarrow muscle fibers \rightarrow sarcomeres \rightarrow filaments \rightarrow myofibrils
C)muscle \rightarrow sarcomeres \rightarrow myofibrils \rightarrow actin filaments \rightarrow myosin filaments
D)muscle cells \rightarrow myofibrils \rightarrow filaments \rightarrow sarcomeres
E)muscle \rightarrow myofibrils \rightarrow sarcomeres \rightarrow muscle cells \rightarrow filaments
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44
The antagonistic muscle to the quadriceps femoris group is the gastrocnemius.
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45
What is the correct order of structures that a motor nerve stimulation encounters when triggering a contraction?

A)motor nerve \rightarrow synaptic cleft \rightarrow sarcoplasmic reticulum \rightarrow sarcolemma \rightarrow troponin
B)motor nerve \rightarrow synaptic cleft \rightarrow sarcolemma \rightarrow sarcoplasmic reticulum \rightarrow troponin
C)motor nerve \rightarrow sarcoplasmic reticulum \rightarrow synaptic cleft \rightarrow sarcolemma \rightarrow troponin
D)motor nerve \rightarrow sarcolemma \rightarrow sarcoplasmic reticulum \rightarrow synaptic cleft \rightarrow troponin
E)motor nerve \rightarrow sarcolemma \rightarrow synaptic cleft \rightarrow sarcoplasmic reticulum \rightarrow troponin
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46
Timothy has really "ripped" abdominal muscles.What muscle(s)has he exercised extensively to get that appearance?

A)rectus abdominis
B)biceps brachii
C)latissimus dorsi
D)external oblique
E)adductor longus
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47
What is the name of the muscle that you sit on?

A)deltoid
B)quadriceps femoris group
C)hamstring group
D)gluteus maximus
E)pectoralis major
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48
Which of the following criteria is not used in the naming of muscles?

A)size
B)shape
C)location
D)name(s)of the bone(s)it attaches to
E)number of attachments
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49
Skeletal muscles

A)are found in and about internal organs.
B)work in antagonistic pairs.
C)never get longer when they contract.
D)contain calcium throughout the cell.
E)have the same origin and insertion point.
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50
Which statement is NOT true regarding cross bridges?

A)They involve the use of Ca2+.
B)They are used to split ATP.
C)They form a complex with actin.
D)They are extensions of myosin molecules.
E)They attach to active sites on myosin.
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51
The conversion that supplies the required energy for muscle contraction might be illustrated as

A)ATP \rightarrow ADP + (P).
B)AMP \rightarrow ATP.
C)glucose \rightarrow O2 + lactic acid.
D)O2 \rightarrow lactic acid + CO2.
E)glucose + O2 \rightarrow water + lactic acid.
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52
Which molecule can be used directly to regenerate ATP?

A)ADP
B)glucose
C)lactate
D)creatine phosphate
E)tropomyosin
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53
Name the neuromuscular transmitter that is released at the axon terminal.

A)sodium ions
B)calcium ions
C)ATP
D)creatine phosphate
E)acetylcholine
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54
In contraction

A)the thin filaments become shorter.
B)the thin filaments become longer.
C)the thick filaments become shorter.
D)the thick filaments become longer.
E)neither of the filaments change length.
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55
Actin and myosin filaments are both present in the dense region called the

A)A band.
B)Z line.
C)H zone.
D)I band.
E)M band.
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56
Oxygen debt may be associated with

A)low oxygen demand by the cells.
B)lactic acid buildup.
C)too much oxygen in the body.
D)too little carbon dioxide in the body.
E)failure to convert potential energy into kinetic energy.
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57
In an accident,the extensor muscles across the back of the fingers of one hand are completely severed.What is the result if no surgery is done to rejoin them?

A)The fingers will dangle and extend out limp.
B)The fingers will curl and remain permanently flexed.
C)The fingers will forcibly extend and remain extended.
D)Hand movements will continue as before the accident.
E)It depends on how the muscles heal.
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58
A neuromuscular junction operates much like a synapse between two nerve cells.
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59
The plasma membrane of a muscle cell is called a sarcolemma.
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60
The deltoid muscle is shaped like a triangle.
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61
Which is NOT a correct association of diseases and description or symptoms?

A)atrophy-decrease in size of muscles from lack of use or stimulation
B)fibromyalgia-chronic pain in the muscles and ligaments
C)osteoarthritis-degenerative joint disease
D)osteoporosis-weakening or thinning of bone sometimes due to low estrogen levels
E)rheumatoid arthritis-simple wear and tear on joints
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62
Which part of a muscle twitch occurs when the sarcomere distance is decreasing?

A)latent period
B)contraction period
C)relaxation period
D)refractory period
E)expansion period
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63
If all of the muscle fibers in the neck,trunk,and legs were to totally relax,the body would collapse.What is the state called where some of the fibers in a particular muscle are always contracted?

A)twitch
B)threshold
C)tetanus
D)tone
E)summation
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64
Which is not true of osteoarthritis?

A)typically begins after age 40
B)is more common than rheumatoid arthritis
C)may be treated by replacing damaged joints
D)may be caused by overuse of a joint
E)result of the immune system attacking the joints
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65
Depending on the degree of stimulation,more and more individual muscle fibers contract,resulting in a stronger muscle contraction.
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66
In the movies,there are often scenes where someone is holding a person to prevent them from falling.All of a sudden,the person's grip gives way and the other person falls.What is this most likely due to?

A)The person changes their mind and lets go.
B)Fatigue,following sustained muscle contraction,is apparent when a muscle relaxes even though stimulation continues.
C)A muscle twitch has a contraction period followed by a relaxation period.
D)Some of the muscle fibers contract while others relax at any given time.When more muscle fibers relax than contract,the grip would be broken.
E)The slow-twitch muscle fibers take over after the fast-twitch muscle fibers fail.These do not have the same strength and endurance as the fast-twitch fibers and the person lets go.
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67
A muscle cramp happens when the actin and myosin filaments "seize up."
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68
If an athlete is training for the Olympic weight lifting team,what type of exercising should they be doing?

A)Their training routine should include weight lifting,sprinting,or any other type of activity that requires an explosion of energy in order to increase their fast-twitch fibers.
B)Their training routine should include weight lifting,sprinting,or any other type of activity that requires an explosion of energy in order to increase their slow-twitch fibers.
C)Their training routine should include swimming,biking,jogging,and any other type of activity that requires an explosion of energy in order to increase their fast-twitch fibers.
D)Their training routine should include swimming,biking,jogging,and any other type of activity that produces their energy aerobically in order to increase their slow-twitch fibers.
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69
Jack broke his right leg in a football accident.He has had a cast on for about 2 months.Now that the cast is off,Jack has found that his right calf is significantly smaller than his left calf.Why is this?

A)The unused right calf atrophied.
B)When you break a bone,the attached muscle is also torn.Therefore,it gets smaller.
C)Calf muscles are composed of fast-twitch fibers and tend to grow larger over time.
D)The left calf probably hypertrophied in compensating for the broken leg during walking.
E)This is highly unusual and suggests some type of muscle disease.
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70
Judo is a sport that requires an explosion of energy rather than endurance.The better type of muscle would be

A)slow-twitch fibers with many mitochondria and high blood supply.
B)slow-twitch fibers with fewer mitochondria and lower blood supply.
C)fast-twitch fibers with many mitochondria and high blood supply.
D)fast-twitch fibers with fewer mitochondria and lower blood supply.
E)fast-twitch fibers with a reserve of glycogen and fat.
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71
In a complete bone fracture,the break does not pass all the way through the bone.
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72
Muscles that are not used or used for very weak contractions experience hypertrophy.
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73
What problems would occur if an individual were to tear their biceps brachii?

A)They would be unable to flex the forearm.
B)They would be unable to extend the forearm.
C)They would be unable to abduct their arm.
D)They would be able to curl their fingers.
E)All of the answer choices could not be performed.
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74
Which of the following can prevent osteoporosis?

A)aspirin therapy
B)estrogen replacement therapy
C)treatment with chondroitin sulfate
D)treatment with glucosamine
E)treatment with corticosteroids
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75
What is the condition in many older women in which the bones become weak and thin?

A)rheumatoid arthritis
B)bursitis
C)osteoarthritis
D)osteoporosis
E)meningitis
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76
A muscle but not the muscle fiber will obey the all-or-none law.
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77
A maximal sustained muscle contraction is called

A)a twitch.
B)a threshold.
C)tetanus.
D)tone.
E)summation.
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