Question 1

The inside of the shaft of a long bone is filled with:

Accepted Answer

A) spongy bone. 
B) cartilage. 
C) bone marrow. 
D) synovial fluid. 
A) spongy bone. 
B) cartilage. 
C) bone marrow. 
D) synovial fluid.

Question 2

Identify muscle E.

Accepted Answer

A) Soleus 
B) Tibialis anterior 
C) Gastrocnemius 
D) Triceps brachii 
A) Soleus 
B) Tibialis anterior 
C) Gastrocnemius 
D) Triceps brachii

Question 3

What is the first step in repairing a broken bone?

Accepted Answer

A) A bony callus forms. 
B) A fibrocartilagenous callus forms. 
C) A hematoma forms. 
D) Osteoblasts produce spongy bone. 
A) A bony callus forms. 
B) A fibrocartilagenous callus forms. 
C) A hematoma forms. 
D) Osteoblasts produce spongy bone.

Question 4

What is happening during the latent period of muscle contraction?

Accepted Answer

A) Contraction 
B) Z lines are moving farther apart 
C) Actin active sites are being exposed 
D) Calcium is being resequestered 
A) Contraction 
B) Z lines are moving farther apart 
C) Actin active sites are being exposed 
D) Calcium is being resequestered

Question 5

The first step of endochondral ossification is:

Accepted Answer

A) formation of the marrow cavity. 
B) a cartilage model forms. 
C) blood vessels penetrate the central portion of the bone. 
D) an epiphyseal plate forms at both ends of the bone. 
A) formation of the marrow cavity. 
B) a cartilage model forms. 
C) blood vessels penetrate the central portion of the bone. 
D) an epiphyseal plate forms at both ends of the bone.

Question 6

What is the name of the structure labeled C?

Accepted Answer

A) Endomysium 
B) Myofibril 
C) Muscle fiber 
D) Myofilament 
A) Endomysium 
B) Myofibril 
C) Muscle fiber 
D) Myofilament

Question 7

Which bone cell is responsible for laying down new bone?

Accepted Answer

A) Osteoblast 
B) Osteoclast 
C) Chondroblast 
D) Osteocyte 
A) Osteoblast 
B) Osteoclast 
C) Chondroblast 
D) Osteocyte

Question 8

What kind of bone structure is labeled A?

Accepted Answer

A) Spongy 
B) Compact 
C) Osteocyte 
D) Periosteum 
A) Spongy 
B) Compact 
C) Osteocyte 
D) Periosteum

Question 9

Why is the aerobic pathway the most efficient way to supply energy?

Accepted Answer

A) It uses oxygen as the driving force. 
B) It supplies the most ATP. 
C) It makes the most use of the energy in glucose. 
D) All of these are correct. 
A) It uses oxygen as the driving force. 
B) It supplies the most ATP. 
C) It makes the most use of the energy in glucose. 
D) All of these are correct.

Question 10

Which step is the power stroke?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 11

What is the purpose of the connective tissues associated with muscle?

Accepted Answer

A) They converge to form the tendon which attaches the muscle to bone. 
B) They hold the functional parts of the muscle together so its acts as a whole unit. 
C) They keep the muscle from tearing apart. 
D) All of these are correct. 
A) They converge to form the tendon which attaches the muscle to bone. 
B) They hold the functional parts of the muscle together so its acts as a whole unit. 
C) They keep the muscle from tearing apart. 
D) All of these are correct.

Question 12

The fascicles are the "stringy" tabs that you see across a cut of raw steak.

Accepted Answer

A) True 
 B)False

Question 13

A sarcomere that is slightly squished will exert less power.

Accepted Answer

A) True 
 B)False

Question 14

Identify muscle A.

Accepted Answer

A) Latissimus dorsi 
B) Rectus abdominis 
C) External oblique 
D) Linea alba 
A) Latissimus dorsi 
B) Rectus abdominis 
C) External oblique 
D) Linea alba

Question 15

Actin covers the binding site on myosin.

Accepted Answer

A) True 
 B)False

Question 16

The muscular system plays a role in protection of the internal organs.

Accepted Answer

A) True 
 B)False

Question 17

Identify muscle A.

Accepted Answer

A) Deltoid 
B) Trapezius 
C) Scalenes 
D) Teres major 
A) Deltoid 
B) Trapezius 
C) Scalenes 
D) Teres major

Question 18

Which structure is labeled B?

Accepted Answer

A) Fascicle 
B) Muscle fiber 
C) Myofilament 
D) Myofibril 
A) Fascicle 
B) Muscle fiber 
C) Myofilament 
D) Myofibril

Question 19

Individual muscle cells contract:

Accepted Answer

A) in a graded manner and weakly at first. 
B) on an all or nothing basis. 
C) with all the other muscle cells in the motor unit. 
D) and generate a threshold stimulus. 
A) in a graded manner and weakly at first. 
B) on an all or nothing basis. 
C) with all the other muscle cells in the motor unit. 
D) and generate a threshold stimulus.

Question 20

If we cannot get enough oxygen to the muscle cells,what happens?

Accepted Answer

A) The muscle cell stops contracting. 
B) The muscle cell makes less ATP. 
C) The muscle cell continues with the Kreb's cycle but not the electron transport chain. 
D) All of these are correct. 
A) The muscle cell stops contracting. 
B) The muscle cell makes less ATP. 
C) The muscle cell continues with the Kreb's cycle but not the electron transport chain. 
D) All of these are correct.

Exam 6: The Skeletomuscular System

The inside of the shaft of a long bone is filled with:

Identify muscle E.

What is the first step in repairing a broken bone?

What is happening during the latent period of muscle contraction?

The first step of endochondral ossification is:

What is the name of the structure labeled C?

Which bone cell is responsible for laying down new bone?

What kind of bone structure is labeled A?

Why is the aerobic pathway the most efficient way to supply energy?

Which step is the power stroke?

What is the purpose of the connective tissues associated with muscle?

The fascicles are the "stringy" tabs that you see across a cut of raw steak.

A sarcomere that is slightly squished will exert less power.

Identify muscle A.

Actin covers the binding site on myosin.

The muscular system plays a role in protection of the internal organs.

Identify muscle A.

Which structure is labeled B?

Individual muscle cells contract:

If we cannot get enough oxygen to the muscle cells,what happens?

What Is Life

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Life Has a Unique Chemistry

Organization and Communication

Tissues

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The Special Senses

Immunity and the Lymphatic System

Infectious Disease and Epidemiology

Cancer

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The Respiratory System: Movement of Air

Nutrition: You Are What You Eat

The Digestive System

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The Endocrine System and Development

The Reproductive Systems: Maintaining the Species

Pregnancy: Development From Conception to Newborn

Inheritance, Genetics, and Molecular Biology

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