Question 1

What is the name of the muscle that is responsible for blinking and winking?

Accepted Answer

A)   latissimus dorsi
B)   trapezius
C)   pectoralis major
D)   orbicularis oculi
E)   extensor digitorumF) C) and D)
G) C) and E)

Question 2

What is happening during the latent period of a muscle twitch?

Accepted Answer

A)   The muscle relaxes and returns to its former length.
B)   Fresh ATP binds to the myosin, causing it to return to its resting position.
C)   ADP and phosphate are released, and the power stroke of the contraction occurs.
D)   The myosin-actin cross-bridges are broken and the sarcomere shortens.
E)   The neurotransmitter is diffusing across the synaptic cleft, causing an electrical signal in the muscle cell.F) A) and E)
G) B) and C)

Question 3

Which of the following does not attach to the sternocleidomastoid muscle?

Accepted Answer

A)   rib
B)   clavicle
C)   sternum
D)   mastoid process
E)   skullF) A) and C)
G) B) and C)

Question 4

Explain the differences between fast-twitch and slow-twitch muscle fibers.

Accepted Answer

Fast-twitch muscle fibers are usually an...

Question 5

Of the three pathways for obtaining ATP for muscle contraction, which one requires oxygen?

Accepted Answer

A)   only the creatine phosphate pathway
B)   only fermentation
C)   only respiration
D)   fermentation and respiration
E)   the creatine phosphate pathway and fermentationF) A) and B)
G) C) and D)

Question 6

Which of the following does not occur when a muscle fatigues?

Accepted Answer

A)   Its energy reserves are depleted.
B)   Stimulation continues.
C)   Tetanus is achieved.
D)   Acetylcholine is crossing the synaptic cleft.
E)   The muscle relaxes.F) B) and C)
G) All of the above

Question 7

One motor neuron activates one muscle fiber.

Accepted Answer

A) True 
 B)False

Question 8

Of the three types of muscle tissue, which is not striated?

Accepted Answer

A)   smooth muscle
B)   cardiac muscle
C)   skeletal muscle
D)   skeletal and smooth lack striations
E)   cardiac and smooth lack striationsF) C) and E)
G) A) and E)

Question 9

Of the three pathways for supplying ATP to the muscle, which pathways)  do slow-twitch fibers prefer?

Accepted Answer

A)   the creatine phosphate pathway
B)   fermentation
C)   aerobic respiration
D)   the creatine phosphate pathway or fermentation
E)   the creatine phosphate pathway or aerobic respirationF) A) and B)
G) C) and E)

Question 10

Of the three types of muscle tissue, which is voluntary?

Accepted Answer

A)   smooth muscle
B)   cardiac muscle
C)   skeletal muscle
D)   both smooth and skeletal
E)   both cardiac and skeletal Skeletal muscle is voluntary.F) A) and D)
G) C) and D)

Question 11

Which way does the adductor longus move the thigh?

Accepted Answer

A)   away from the midline
B)   toward the midline
C)   in a circle
D)   in a cone
E)   towards the backF) B) and E)
G) A) and C)

Question 12

Which of the following is not a source of ATP for muscle contraction?

Accepted Answer

A)   ATP in the blood
B)   ATP produced in the cell
C)   the creatine phosphate pathway
D)   fermentation
E)   aerobic respirationF) A) and D)
G) B) and C)

Question 13

A muscle fiber is made up of many

Accepted Answer

A)   muscle cells.
B)   T tubules.
C)   myofibrils.
D)   fascicles.
E)   bursa.F) A) and B)
G) D) and E)

Question 14

What is the reservoir for Ca2+ in the body?

Accepted Answer

A)   muscles
B)   bones
C)   liver
D)   brain
E)   bloodF) All of the above
G) A) and B)

Question 15

Which of the following is not a function of skeletal muscles?

Accepted Answer

A)   pumping of blood throughout the body
B)   support
C)   movement of bones
D)   maintenance of body temperature
E)   protection of internal organsF) C) and D)
G) A) and B)

Question 16

What does the word brevis mean when referring to a muscle?

Accepted Answer

A)   large
B)   small
C)   huge
D)   long
E)   shortF) A) and C)
G) A) and E)

Question 17

Which of the following does not occur when you are very, very cold?

Accepted Answer

A)   More blood flows to the surface of the body.
B)   Smooth muscle contracts inside the blood vessels supplying the skin.
C)   The arrector pili muscles contract.
D)   Shivering occurs.
E)   You get goose bumps.F) All of the above
G) A) and E)

Question 18

Each actin molecule is shaped like a golf club, with a straight portion ending in a globular head.

Accepted Answer

A) True 
 B)False

Question 19

What is the deltoid muscle shaped like?

Accepted Answer

A)   a long thin line
B)   a square
C)   a triangle
D)   a circle
E)   a trapezoidF) A) and D)
G) C) and D)

Question 20

The origin of a muscle is on a stationary bone.

Accepted Answer

A) True 
 B)False

Exam 13: Muscular System

Of the three types of muscle tissue, which is not striated?

Correct AnswerverifiedShow Answer

What is happening during the latent period of a muscle twitch?

Correct AnswerverifiedShow Answer

Which of the following is not a source of ATP for muscle contraction?

Correct AnswerverifiedShow Answer

A muscle fiber is made up of many

Correct AnswerverifiedShow Answer

Each actin molecule is shaped like a golf club, with a straight portion ending in a globular head.

Correct AnswerverifiedShow Answer

Which way does the adductor longus move the thigh?

Correct AnswerverifiedShow Answer

Which of the following is not a function of skeletal muscles?

Correct AnswerverifiedShow Answer

What is the name of the muscle that is responsible for blinking and winking?

Correct AnswerverifiedShow Answer

One motor neuron activates one muscle fiber.

Correct AnswerverifiedShow Answer

Explain the differences between fast-twitch and slow-twitch muscle fibers.

Correct AnswerverifiedFast-twitch muscle fibers are usually an...View AnswerShow Answer

Which of the following does not occur when you are very, very cold?

Correct AnswerverifiedShow Answer

Which of the following does not occur when a muscle fatigues?

Correct AnswerverifiedShow Answer

Of the three pathways for obtaining ATP for muscle contraction, which one requires oxygen?

Correct AnswerverifiedShow Answer

Of the three pathways for supplying ATP to the muscle, which pathways) do slow-twitch fibers prefer?

Correct AnswerverifiedShow Answer

The origin of a muscle is on a stationary bone.

Correct AnswerverifiedShow Answer

Of the three types of muscle tissue, which is voluntary?

Correct AnswerverifiedShow Answer

Which of the following does not attach to the sternocleidomastoid muscle?

Correct AnswerverifiedShow Answer

What does the word brevis mean when referring to a muscle?

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What is the deltoid muscle shaped like?

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What is the reservoir for Ca2+ in the body?

Correct AnswerverifiedShow Answer

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Fast-twitch muscle fibers are usually an...
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What is the reservoir for Ca²⁺ in the body?

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