Question 1

The spring-like property that returns muscle to its original length after a contraction ends is

Accepted Answer

A)  extensibility.
B)  elasticity.
C)  contractility.
D)  treppe effect.
E)  conductivity.F) C) and E)
G) B) and D)

Question 2

In a graph of wave summation,the tension level returns to baseline between each peak of force.

Accepted Answer

A) True 
 B)False

Question 3

Muscles of the eye and hand have a high percentage of _______ fibers.

Accepted Answer

A)  fast-twitch
B)  slow-twitchC) A) and B)
D) undefined

Question 4

When tension output exceeds resistance and the muscle exerts a constant force as it changes length,the contraction is described as _________.

Accepted Answer

The answer of When tension output exceeds resistance and the...

Question 5

The characteristic of muscle that allows it to be passively stretched is

Accepted Answer

A)  conductivity.
B)  elasticity.
C)  excitability.
D)  extensibility.
E)  contractility.F) A) and E)
G) C) and E)

Question 6

For a sprint lasting 60 seconds,ATP is supplied primarily by

Accepted Answer

A)  aerobic respiration only.
B)  phosphate transfer and glycolysis.
C)  conversion of lactate to pyruvate.
D)  phosphate transfer only.E) B) and C)
F) B) and D)

Question 7

Acetylcholine is released from a neuron

Accepted Answer

A)  by a primary active transport pump.
B)  by rapid diffusion when a voltage-gated ion channel opens for it.
C)  through exocytosis when a vesicle fuses with the membrane.
D)  by conduction through a gap junction from nerve to muscle.E) All of the above
F) C) and D)

Question 8

An increase in the size of a muscle fiber is called _________________.

Accepted Answer

The answer of An increase in the size of a...

Question 9

During REM sleep,muscle tone decreases significantly.

Accepted Answer

A) True 
 B)False

Question 10

The latchbridge mechanism of myosin heads is a property of ________ muscle.

Accepted Answer

A)  cardiac
B)  skeletal
C)  smoothD) None of the above
E) A) and B)

Question 11

Consider the difference between lifting a light pad of paper versus a heavy textbook.The primary way the level of force of muscle contraction is controlled is by

Accepted Answer

A)  recruiting a different number of motor units.
B)  activating different regions of the muscle.
C)  activating the motor units at a different frequency.
D)  altering the number of crossbridges each individual fiber uses.E) B) and D)
F) B) and C)

Question 12

When someone engages in exercise that requires more oxygen than is available,they develop a(n)_____ _______ (2 words),which results in heavy breathing for several minutes after the exercise is complete.

Accepted Answer

The answer of When someone engages in exercise that requires...

Question 13

For relaxation to occur,

Accepted Answer

A)  ACh receptors close and Ca++channels on the sarcoplasmic reticulum close.
B)  ACh receptors close and Ca++channels on the sarcoplasmic reticulum open.
C)  ACh receptors open and Ca++channels on the sarcoplasmic reticulum close.
D)  ACh receptors open and Ca++channels on the sarcoplasmic reticulum open.E) A) and B)
F) A) and C)

Question 14

Satellite cells are multinucleate.

Accepted Answer

A) True 
 B)False

Question 15

The type of fibers specialized to continue contracting for extended periods of time,as would be required in running a marathon,for example,are _____ fibers.

Accepted Answer

A)  fast-twitch
B)  slow-twitch
C)  intermediateD) None of the above
E) B) and C)

Question 16

Which contraction occurs when you try (unsuccessfully) to move a wall

Accepted Answer

A)  Isometric
B)  IsotonicC) A) and B)
D) undefined

Question 17

Which of the following structures has the active sites to which the heads of the thick filaments will bind

Accepted Answer

A)  Actin
B)  Troponin
C)  Tropomyosin
D)  Myosin
E)  SarcoplasmF) A) and E)
G) A) and B)

Question 18

When an impulse arrives at the knob of the motor neuron,calcium

Accepted Answer

A)  enters through active transport pumps and triggers the release of transmitter.
B)  enters through voltage-gated channels and triggers the release of transmitter.
C)  exits through active transport pumps and brings transmitter with it.
D)  exits through voltage-gated channels and triggers transmitter release.
E)  is released from synaptic vesicles.F) C) and D)
G) D) and E)

Question 19

__________ is a protein that anchors myofibrils that are adjacent to the sarcolemma to proteins in the sarcolemma.

Accepted Answer

The answer of __________ is a protein that anchors myofibrils...

Question 20

The connections between the nervous system and skeletal muscle allow for voluntary control of movement.

Accepted Answer

A) True 
 B)False

Exam 10: Muscle Tissue

Acetylcholine is released from a neuron

Correct AnswerverifiedShow Answer

For a sprint lasting 60 seconds,ATP is supplied primarily by

Correct AnswerverifiedShow Answer

When an impulse arrives at the knob of the motor neuron,calcium

Correct AnswerverifiedShow Answer

The connections between the nervous system and skeletal muscle allow for voluntary control of movement.

Correct AnswerverifiedShow Answer

Satellite cells are multinucleate.

Correct AnswerverifiedShow Answer

During REM sleep,muscle tone decreases significantly.

Correct AnswerverifiedShow Answer

The latchbridge mechanism of myosin heads is a property of ________ muscle.

Correct AnswerverifiedShow Answer

Muscles of the eye and hand have a high percentage of _______ fibers.

Correct AnswerverifiedShow Answer

Consider the difference between lifting a light pad of paper versus a heavy textbook.The primary way the level of force of muscle contraction is controlled is by

Correct AnswerverifiedShow Answer

The characteristic of muscle that allows it to be passively stretched is

Correct AnswerverifiedShow Answer

__________ is a protein that anchors myofibrils that are adjacent to the sarcolemma to proteins in the sarcolemma.

Correct AnswerverifiedShow Answer

For relaxation to occur,

Correct AnswerverifiedShow Answer

The type of fibers specialized to continue contracting for extended periods of time,as would be required in running a marathon,for example,are _____ fibers.

Correct AnswerverifiedShow Answer

When tension output exceeds resistance and the muscle exerts a constant force as it changes length,the contraction is described as _________.

Correct AnswerverifiedShow Answer

An increase in the size of a muscle fiber is called _________________.

Correct AnswerverifiedShow Answer

The spring-like property that returns muscle to its original length after a contraction ends is

Correct AnswerverifiedShow Answer

Which of the following structures has the active sites to which the heads of the thick filaments will bind

Correct AnswerverifiedShow Answer

Which contraction occurs when you try (unsuccessfully) to move a wall

Correct AnswerverifiedShow Answer

In a graph of wave summation,the tension level returns to baseline between each peak of force.

Correct AnswerverifiedShow Answer

When someone engages in exercise that requires more oxygen than is available,they develop a(n)_____ _______ (2 words),which results in heavy breathing for several minutes after the exercise is complete.

Correct AnswerverifiedShow Answer

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When someone engages in exercise that requires more oxygen than is available,they develop a(n)_ ___ (2 words),which results in heavy breathing for several minutes after the exercise is complete.

Correct Answer
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