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Chapter Practice Test



This activity contains 18 questions.

Question 1
1 Which of the following muscle types is both voluntary and striated?
 
End of Question 1


Question 2
2 Muscle cells initiate nerve impulses.
   
 
End of Question 2


Question 3
3 Which of the following is a special adaptation present in skeletal muscle cells, but absent in most other cells?
 
End of Question 3


Question 4
4 The final "go" signal for skeletal muscle contraction is __________.
 
End of Question 4


Question 5
5 The __________ are extensions of the sarcolemma, and serve as a rapid communication system that ensures that every myofibril in the muscle fiber contracts at virtually the same time.
 
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Question 6
6 The thin myofilaments of skeletal muscle are composed chiefly of __________.
 
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Question 7
7 Acetylcholinesterase __________.
 
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Question 8
8 Myofibrils are composed of repeating contractile elements called __________.
 
End of Question 8


Question 9
9 Which of the following statements is false?
 
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Question 10
10 When an action potential arrives at the neuromuscular junction, the most immediate result is __________.
 
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Question 11
11 If a muscle is applied to a load that exceeds the muscle's maximum tension, __________.
 
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Question 12
12 Properly controlled skeletal muscle contractions produced by changing the frequency of stimulation or the strength of stimulation are accomplished by __________.
 
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Question 13
13 The most efficient means of producing ATP is __________.
 
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Question 14
14 What would occur if a muscle became totally depleted of ATP?
 
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Question 15
15 Match the muscle fiber to the appropriate characteristic.

Using the pull-down menus, match each item in the left column to the corresponding item in the right column.
A fatigues quickly
B fatigue resistant
C moderately fatigue resistant
End of Question 15


Question 16
16 Which of the following is false regarding smooth muscle?
 
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Question 17
17 Choose the true statement.
 
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Question 18
18 Duchenne muscular dystrophy is more common in females than in males.
   
 
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