Question 1

What is the purpose of the triad?

Accepted Answer

A)   The triad stores sodium.
B)   The triad synthesizes ATP.
C)   The triad maintains the resting membrane potential.
D)   The triad removes acetylcholine from the synaptic cleft.
E)   The triad allows for Ca2+ release when a muscle fiber is excited.F) D) and E)
G) A) and D)

Question 2

Athletes who train at high altitudes increase their red blood cell count,which increases their oxygen supply during exercise.Increased oxygen supply results in __________.

Accepted Answer

A)   increased glycolysis
B)   increased use of myokinase
C)   longer aerobic respiration
D)   longer anaerobic fermentation
E)   reduced ATP consumptionF) A) and C)
G) B) and E)

Question 3

Some smooth muscle is autorhythmic.

Accepted Answer

A) True 
 B)False

Question 4

A deficiency of acetylcholine receptors leads to muscle paralysis in myasthenia gravis.

Accepted Answer

A) True 
 B)False

Question 5

The training regimen of a competitive weight lifter is designed partly to __________.

Accepted Answer

A)   convert certain parallel muscles into stronger pennate muscles
B)   increase the average number of myofibrils per muscle fiber
C)   convert white muscle tissue to red muscle
D)   increase the size of his motor units
E)   lower the threshold for muscle excitationF) A) and B)
G) All of the above

Question 6

Clinically,dystrophin is the most important noncontractile protein to occur in muscle fibers.

Accepted Answer

A) True 
 B)False

Question 7

The sarcolemma of a resting muscle fiber is most permeable to __________.

Accepted Answer

A)   calcium
B)   potassium
C)   sodium
D)   lithium
E)   magnesiumF) B) and C)
G) C) and E)

Question 8

In skeletal muscle,the term that describes the alternating light and dark bands is ___________.

Accepted Answer

A)   strabismus
B)   striations
C)   tetanus
D)   myofibrils
E)   myoblastsF) B) and E)
G) A) and B)

Question 9

Which of the following is true concerning isotonic concentric contraction?

Accepted Answer

A)   The muscle shortens but tension remains constant.
B)   The muscle lengthens but tension remains constant.
C)   The muscle tenses and shortens.
D)   The muscle tenses but length remains unchanged.
E)   The muscle lengthens and tension declines.F) C) and D)
G) B) and D)

Exam 11: Muscular Tissue

What is the purpose of the triad?

Correct Answer
verified

The sarcolemma of a resting muscle fiber is most permeable to __________.

Correct Answer
verified

Which of the following is true concerning isotonic concentric contraction?

Correct Answer
verified

The training regimen of a competitive weight lifter is designed partly to __________.

Correct Answer
verified

Clinically,dystrophin is the most important noncontractile protein to occur in muscle fibers.

Correct Answer
verified

A deficiency of acetylcholine receptors leads to muscle paralysis in myasthenia gravis.

Correct Answer
verified

In skeletal muscle,the term that describes the alternating light and dark bands is ___________.

Correct Answer
verified

Athletes who train at high altitudes increase their red blood cell count,which increases their oxygen supply during exercise.Increased oxygen supply results in __________.

Correct Answer
verified

Some smooth muscle is autorhythmic.

Correct Answer
verified

Exam 11: Muscular Tissue

What is the purpose of the triad?

Correct AnswerverifiedShow Answer

The sarcolemma of a resting muscle fiber is most permeable to __________.

Correct AnswerverifiedShow Answer

Which of the following is true concerning isotonic concentric contraction?

Correct AnswerverifiedShow Answer

The training regimen of a competitive weight lifter is designed partly to __________.

Correct AnswerverifiedShow Answer

Clinically,dystrophin is the most important noncontractile protein to occur in muscle fibers.

Correct AnswerverifiedShow Answer

A deficiency of acetylcholine receptors leads to muscle paralysis in myasthenia gravis.

Correct AnswerverifiedShow Answer

In skeletal muscle,the term that describes the alternating light and dark bands is ___________.

Correct AnswerverifiedShow Answer

Athletes who train at high altitudes increase their red blood cell count,which increases their oxygen supply during exercise.Increased oxygen supply results in __________.

Correct AnswerverifiedShow Answer

Some smooth muscle is autorhythmic.

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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