Deck 11: B: Anatomy of the Muscular System

Question 1

The covering of individual muscle fibers is the:

A) epimysium.
B) endomysium.
C) periosteum.
D) perimysium.

Answer 1

B

Question 2

All of the following muscles are part of the rotator cuff muscles except the:

A) deltoid.
B) infraspinatus.
C) supraspinatus.
D) teres minor.

Answer 2

A

Question 3

Skeletal muscles constitute approximately ____ of our body weight.

A) 10%
B) 25%
C) 50%
D) 75%

Answer 3

C

Question 4

Which of the following muscle(s)function(s)to protect the abdominal viscera?

A) External oblique
B) Internal oblique
C) Transversus abdominis
D) All of the above

Question 5

Which of the following muscles does not move the upper arm?

A) Pectoralis major
B) Latissimus dorsi
C) Deltoid
D) Trapezius

Question 6

Groups of skeletal muscle fibers are bound together by a connective tissue envelope called the:

A) endomysium.
B) perimysium.
C) epimysium.
D) aponeurosis.

Question 7

Which of the following is not a component of a lever system?

A) Fixator
B) Bone
C) Joint
D) Pull

Question 8

Muscles may be named according to:

A) function.
B) direction of fibers.
C) points of attachment.
D) all of the above.

Question 9

The type of lever arrangement in which the pull is exerted between the fulcrum and resistance or weight to be moved is a _____-class level.

A) first
B) second
C) third
D) fourth

Question 10

An aponeurosis could be described as a:

A) flat sheet of connective tissue connecting muscle to other structures.
B) sheath that surrounds tendons.
C) deep fascia that covers muscles.
D) junction between a neuron and a muscle.

Question 11

The muscle that raises or lowers the shoulders or shrugs them is the:

A) deltoid.
B) latissimus dorsi.
C) trapezius.
D) pectoralis minor.

Question 12

The muscle that allows the thumb to be drawn across the palm to touch the tip of any finger is the:

A) extensor digitorum.
B) opponens pollicis.
C) palmaris longus.
D) flexor carpi radialis.

Question 13

Muscles that contract at the same time as the prime mover are called:

A) synergists.
B) fixators.
C) antagonists.
D) both A and B.

Question 14

The sternocleidomastoid muscle is an example of a muscle named for its

A) function.
B) number of attachments.
C) size.
D) points of attachment.

Question 15

The muscle that draws the eyebrows together,producing vertical wrinkles above the nose (frowning),is called the:

A) epicranius.
B) corrugator supercilii.
C) orbicularis oculi.
D) orbicularis oris.

Question 16

The connective tissue sheath that envelops bundles of muscle fibers is the:

A) epimysium.
B) endomysium.
C) periosteum.
D) perimysium.

Question 17

Which of the following muscles has fibers on a transverse plane?

A) Rectus abdominis
B) External oblique
C) Transverse abdominis
D) Internal intercostals

Question 18

The teres major and teres minor muscles move the:

A) forearm.
B) arm.
C) shoulder.
D) wrist.

Question 19

Which muscle(s)form(s)most of the pelvic floor?

A) Levator ani
B) Coccygeus
C) Ischiocavernosus
D) Both A and B

Question 20

A muscle that assists with mastication is the:

A) orbicularis oris.
B) buccinator.
C) platysma.
D) masseter.

Question 21

Which of the following body systems assists the muscles in maintaining posture?

A) Digestive
B) Endocrine
C) Excretory
D) All of the above

Question 22

Which of the following is not a muscle of the quadriceps femoris group?

A) Rectus femoris
B) Biceps femoris
C) Vastus medialis
D) Vastus intermedius

Question 23

When an athlete injures a muscle of the hamstring group,the injury is on the:

A) upper arm.
B) posterior lower leg.
C) posterior thigh.
D) anterior thigh.

Question 24

The muscle that flexes the semipronated or semisupinated forearm is the:

A) biceps brachii.
B) brachialis.
C) brachioradialis.
D) triceps brachii.

Question 25

The flexor muscles that move the fingers are mostly located on the:

A) anterior lateral surface of the forearm.
B) anterior medial surface of the forearm.
C) posterior surface of the forearm.
D) posterior surface of the hand.

Question 26

The muscle(s)assisting in rotating the arm outward is(are)the:

A) teres minor.
B) latissimus dorsi.
C) supraspinatus.
D) All of the above are correct.

Question 27

Which of the following is not a muscle that moves the thigh?

A) Adductor longus
B) Gracilis
C) Iliopsoas
D) Sacrospinalis

Question 28

The origin of a muscle is on the femur,and the insertion is on the tibia.When it contracts,it bends the knee.Its fibers run parallel to the body.Which of the following terms might be part of its name?

A) Extensor
B) Abductor
C) Flexor
D) Adductor

Question 29

Which fibrous connective tissue structures have a lining of synovial membrane?

A) Tendon sheaths
B) Aponeuroses
C) Fascicles
D) Both B and C

Question 30

In pushing (pressing)a weight from shoulder height to above the head,which of the following muscles is least utilized?

A) Triceps brachii
B) Biceps brachii
C) Deltoid

Question 31

Muscles located on the lower leg move the:

A) thigh.
B) hip.
C) knee.
D) foot.

Question 32

The origin of a muscle is on the femur,and the insertion is on the tibia.When it contracts,it bends the knee.Which of the following is true?

A) The knee is acting as a fulcrum.
B) The movement is an example of a first-class lever.
C) The movement is an example of a second-class lever.
D) Both A and C are true.

Question 33

A muscle is attached to the femur and the tibia.When the muscle contracts,the knee bends.That would mean that the:

A) tibia attachment is the origin.
B) femur attachment is the insertion.
C) tibia attachment is the insertion.
D) Both A and B are correct.

Question 34

A muscle is attached to the femur and tibia.Its function or action is to bend the knee.When it contracts,it is acting as the:

A) antagonist.
B) prime mover.
C) fixator.
D) synergist.

Question 35

The posterior arm muscle that extends the forearm is the:

A) biceps brachii.
B) triceps brachii.
C) supinator.
D) brachialis.

Question 36

The muscle that extends and adducts the arm is the:

A) deltoid.
B) latissimus dorsi.
C) trapezius.
D) pectoralis minor.

Question 37

The action of the brachialis muscle is to _____ the forearm.

A) flex
B) extend
C) pronate
D) supinate

Question 38

Muscles that move the upper arm originate on the:

A) ulna and humerus.
B) clavicle and scapula.
C) humerus.
D) ulna and radius.

Question 39

Which of the following is not a muscle that moves the foot?

A) Sartorius
B) Peroneus longus
C) Tibialis anterior
D) Soleus

Question 40

Purposeful movement is determined by:

A) the relationship of muscles to joints.
B) how muscles are attached to the skeleton.
C) the manner in which muscles are grouped.
D) all of the above.

Question 41

Moving from superficial to deep,the connective tissue components would be:

A) epimysium, perimysium, endomysium.
B) endomysium, perimysium, epimysium.
C) perimysium, epimysium, endomysium.
D) perimysium, endomysium, epimysium.

Question 42

Match each feature with the muscles named by that feature.a.Location
b.Function
c.Shape
d.Direction of fibers
e.Number of heads or divisions
f.Points of attachment
adductors

Question 43

Match each feature with the muscles named by that feature.a.Location
b.Function
c.Shape
d.Direction of fibers
e.Number of heads or divisions
f.Points of attachment
triceps

Question 44

There are more than ____ skeletal muscles in the body.

A) 1200
B) 900
C) 600
D) 1000

Question 45

Another name for a skeletal muscle cell is a(n):

A) muscle fiber.
B) fascicle.
C) aponeurosis.
D) fascia.

Question 46

Which of the following statements about the muscles of the head is incorrect?

A) They are paired muscles.
B) They have different actions depending on whether one or both of the pair contract.
C) The splenius capitis muscle is sometimes called the prayer muscle because it causes the head to bow.
D) All of the above statements are correct.

Question 47

The soleus muscle is an example of a _____ muscle.

A) convergent
B) parallel
C) fusiform
D) pennate

Question 48

The pectoralis major muscle is an example of a _____ muscle.

A) convergent
B) parallel
C) fusiform
D) pennate

Question 49

Match each feature with the muscles named by that feature.a.Location
b.Function
c.Shape
d.Direction of fibers
e.Number of heads or divisions
f.Points of attachment
rectus

Question 50

The prime mover can also be called the:

A) antagonist.
B) agonist.
C) fixator.
D) synergist.

Question 51

The brachioradialis muscle is an example of a _____ muscle.

A) convergent
B) parallel
C) fusiform
D) pennate

Question 52

Which of the following is not a group of pennate muscles

A) Bipennate
B) Tripennate
C) Multipennate
D) All of the above are groups of pennate muscles.

Question 53

Another name for a sphincter muscle is a _____ muscle.

A) spiral
B) circular
C) fusiform
D) convergent

Question 54

Which of the following statements is incorrect?

A) The origin of the muscle is attached to the bone that does not move.
B) The insertion of the muscle is attached to the bone that moves.
C) When the muscle contracts, the insertion moves toward the origin.
D) All of the above are correct.

Question 55

The rectus abdominal muscle is an example of a _____ muscle.

A) convergent
B) parallel
C) fusiform
D) pennate

Question 56

The origin of a muscle is on the femur,and the insertion is on the tibia.When it contracts,it bends the knee.Its fibers run parallel to the body.Which of the following terms might be part of its name?

A) Rectus
B) Oblique
C) Femoris
D) Both A and C

Question 57

Which of the following statements about the muscles of the thorax is incorrect?

A) When the diaphragm contracts, it decreases the volume of the thoracic cavity and expels air from the lungs.
B) The muscles of the thorax assist in respiration.
C) The internal and external intercostal muscles have opposite effects on the ribs.
D) All of the above statements are correct.

Question 58

Which of the following is not a posterior muscle that acts on the shoulder girdle?

A) Trapezius
B) Pectoralis minor
C) Levator scapulae
D) Rhomboideus

Question 59

The most common type of lever in the body is a _____-class level.

A) first
B) second
C) third
D) fourth

Question 60

The latissimus dorsi muscle is an example of a _____ muscle.

A) bipennate
B) convergent
C) spiral
D) fusiform

Question 61

Match each body location with its corresponding muscle.a.Neck
b.Back
c.Chest
d.Abdominal wall
e.Shoulder
f.Arm
g.Forearm
h.Buttocks
i.Thigh
j.Leg
pectoralis major

Question 62

Match each term with its corresponding description.
a.Antagonists
b.Fixators
c.Prime movers
d.Synergists
muscles that directly oppose prime movers

Question 63

Match each body location with its corresponding muscle.a.Neck
b.Back
c.Chest
d.Abdominal wall
e.Shoulder
f.Arm
g.Forearm
h.Buttocks
i.Thigh
j.Leg
external oblique

Question 64

Match each muscle with the corresponding description of its action.
a.Buccinator
b.Corrugator supercilii
c.Epicranius
d.Orbicularis oculi
e.Pterygoid
f.Sternocleidomastoid
close(s)the eye

Question 65

Match each body location with its corresponding muscle.a.Neck
b.Back
c.Chest
d.Abdominal wall
e.Shoulder
f.Arm
g.Forearm
h.Buttocks
i.Thigh
j.Leg
adductor magnus

Question 66

Match each body location with its corresponding muscle.a.Neck
b.Back
c.Chest
d.Abdominal wall
e.Shoulder
f.Arm
g.Forearm
h.Buttocks
i.Thigh
j.Leg
biceps brachii

Question 67

Match each muscle with the corresponding description of its action.
a.Buccinator
b.Corrugator supercilii
c.Epicranius
d.Orbicularis oculi
e.Pterygoid
f.Sternocleidomastoid
draw(s)the eyebrows together,producing vertical wrinkles (frowning)

Question 68

Match each term with its corresponding description.
a.Antagonists
b.Fixators
c.Prime movers
d.Synergists
muscles that contract at the same time as the prime mover,producing a more effective movement

Question 69

Match each body location with its corresponding muscle.a.Neck
b.Back
c.Chest
d.Abdominal wall
e.Shoulder
f.Arm
g.Forearm
h.Buttocks
i.Thigh
j.Leg
trapezius

Question 70

Match each term with its corresponding description.
a.Antagonists
b.Fixators
c.Prime movers
d.Synergists
muscles that play the major role in accomplishing a particular movement

Question 71

Match each muscle with the corresponding description of its action.
a.Buccinator
b.Corrugator supercilii
c.Epicranius
d.Orbicularis oculi
e.Pterygoid
f.Sternocleidomastoid
creates smile expression

Question 72

Match each muscle with the corresponding description of its action.
a.Buccinator
b.Corrugator supercilii
c.Epicranius
d.Orbicularis oculi
e.Pterygoid
f.Sternocleidomastoid
causes sideways movement during mastication

Question 73

Match each body location with its corresponding muscle.a.Neck
b.Back
c.Chest
d.Abdominal wall
e.Shoulder
f.Arm
g.Forearm
h.Buttocks
i.Thigh
j.Leg
gluteus maximus

Question 74

Match each muscle with the corresponding description of its action.
a.Buccinator
b.Corrugator supercilii
c.Epicranius
d.Orbicularis oculi
e.Pterygoid
f.Sternocleidomastoid
flex(es)the head (prayer muscle)

Question 75

Match each feature with the muscles named by that feature.a.Location
b.Function
c.Shape
d.Direction of fibers
e.Number of heads or divisions
f.Points of attachment
brachialis

Question 76

Match each muscle with the corresponding description of its action.
a.Buccinator
b.Corrugator supercilii
c.Epicranius
d.Orbicularis oculi
e.Pterygoid
f.Sternocleidomastoid
raise(s)the eyebrows (surprise)

Question 77

Match each feature with the muscles named by that feature.a.Location
b.Function
c.Shape
d.Direction of fibers
e.Number of heads or divisions
f.Points of attachment
sternocleidomastoid

Question 78

Match each body location with its corresponding muscle.a.Neck
b.Back
c.Chest
d.Abdominal wall
e.Shoulder
f.Arm
g.Forearm
h.Buttocks
i.Thigh
j.Leg
pronator teres

Question 79

Match each term with its corresponding description.
a.Antagonists
b.Fixators
c.Prime movers
d.Synergists
muscles that help maintain posture or balance during contraction of muscles acting on joints in the arms and legs

Question 80

Match each feature with the muscles named by that feature.a.Location
b.Function
c.Shape
d.Direction of fibers
e.Number of heads or divisions
f.Points of attachment
deltoid