Question 1

Which of these correctly matches the property of muscle tissue with its definition?

Accepted Answer

A)   Contractility - the ability to recoil after stretching
B)   Excitability - the ability to shorten with contraction
C)   Extensibility - the ability to be stretched
D)   Elasticity - the ability to conduct an impulseE) B) and D)
F) All of the above

Question 2

Fascicles are bundles of muscle fibers wrapped together within perimysium.

Accepted Answer

A) True 
 B)False

Question 3

Within a fascicle, every muscle fiber is surrounded by the ________.

Accepted Answer

The answer of Within a fascicle, every muscle fiber is...

Question 4

In striated muscle, the I band is where

Accepted Answer

A)   only thick filaments occur.
B)   thin filaments occur.
C)   H zones occur.
D)   thick and thin filaments occur.E) C) and D)
F) A) and B)

Question 5

Acetylcholine

Accepted Answer

A)   binds to the myosin head, enabling it to form cross-bridges with actin.
B)   binds to the sarcolemma and initiates an impulse in the muscle fiber.
C)   breaks down the neurotransmitter that activates muscle fibers.
D)   is released from the sarcoplasmic reticulum and binds to actin.E) A) and B)
F) A) and C)

Question 6

Of the surrounding connective tissues of the muscle, the endomysium is the most superficial.

Accepted Answer

A) True 
 B)False

Question 7

Use the diagram above to answer the following questions.
-Identify the letter that indicates the I band.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) All of the above
G) D) and E)

Question 8

After a muscle fiber has contracted, the calcium

Accepted Answer

A)   is destroyed.
B)   is chemically bound to the myofilaments.
C)   is secreted by the Golgi apparatus.
D)   is actively transported into the sarcoplasmic reticulum.E) A) and B)
F) None of the above

Question 9

Typically, each skeletal muscle is supplied by one ________ and one ________.

Accepted Answer

The answer of Typically, each skeletal muscle is supplied by...

Question 10

This type of muscle contains intercalated discs.

Accepted Answer

A)   skeletal muscle
B)   smooth muscle
C)   cardiac muscleD) All of the above
E) A) and B)

Question 11

Much of the natural elasticity of skeletal muscle tissue is provided by

Accepted Answer

A)   actin.
B)   myosin.
C)   tendons.
D)   connective tissue sheaths.E) B) and C)
F) None of the above

Question 12

During contraction, the ________ shortens, and the ________ disappears completely.

Accepted Answer

The answer of During contraction, the ________ shortens, and the...

Question 13

The synaptic cleft is the space between the terminal bouton and the sarcolemma of the muscle fiber.

Accepted Answer

A) True 
 B)False

Question 14

Use the diagram above to answer the following questions.
-This letter indicates an individual fascicle.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) D) and E)
G) B) and E)

Question 15

The repeating segments seen in a skeletal muscle fiber are the T tubules.

Accepted Answer

A) True 
 B)False

Question 16

A muscle fascicle is

Accepted Answer

A)   a bundle of cells.
B)   a single muscle cell.
C)   a bundle of myofilaments.
D)   a tendon.E) A) and D)
F) A) and C)

Question 17

The ability of the sarcolemma of muscle cells to conduct an impulse is an example of

Accepted Answer

A)   contractility.
B)   excitability.
C)   extensibility.
D)   elasticity.E) A) and B)
F) All of the above

Question 18

During contraction, there is no change in the length of the ________ region of the sarcomere.

Accepted Answer

The answer of During contraction, there is no change in...

Question 19

All of the following are true regarding motor units except

Accepted Answer

A)   Muscles in the fingers have a small number of muscle fibers per motor unit.
B)   If needed, additional motor units can be recruited to accomplish a movement.
C)   A muscle can produce more force if more motor units are recruited.
D)   A single motor unit only innervates muscle fibers in a small area of a muscle.E) A) and B)
F) A) and D)

Question 20

Visceral muscle refers to

Accepted Answer

A)   skeletal muscle and cardiac muscle.
B)   cardiac muscle and smooth muscle.
C)   skeletal muscle and smooth muscle.
D)   smooth muscle only.E) A) and C)
F) A) and B)

Exam 10: Skeletal Muscle Tissue

Visceral muscle refers to

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After a muscle fiber has contracted, the calcium

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The ability of the sarcolemma of muscle cells to conduct an impulse is an example of

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Acetylcholine

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Use the diagram above to answer the following questions. -Identify the letter that indicates the I band.

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Fascicles are bundles of muscle fibers wrapped together within perimysium.

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During contraction, the ________ shortens, and the ________ disappears completely.

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The synaptic cleft is the space between the terminal bouton and the sarcolemma of the muscle fiber.

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Within a fascicle, every muscle fiber is surrounded by the ________.

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During contraction, there is no change in the length of the ________ region of the sarcomere.

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Use the diagram above to answer the following questions. -This letter indicates an individual fascicle.

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Which of these correctly matches the property of muscle tissue with its definition?

Correct AnswerverifiedShow Answer

Typically, each skeletal muscle is supplied by one ________ and one ________.

Correct AnswerverifiedShow Answer

This type of muscle contains intercalated discs.

Correct AnswerverifiedShow Answer

All of the following are true regarding motor units except

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In striated muscle, the I band is where

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Of the surrounding connective tissues of the muscle, the endomysium is the most superficial.

Correct AnswerverifiedShow Answer

Much of the natural elasticity of skeletal muscle tissue is provided by

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A muscle fascicle is

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The repeating segments seen in a skeletal muscle fiber are the T tubules.

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During contraction, the shortens, and the disappears completely.

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Typically, each skeletal muscle is supplied by one and one .

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