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Muscular System: Contraction of Motor Units

Interactive Physiology® Quiz: Muscular System: Contraction of Motor Units

This activity contains 10 questions.

Question 1
1 A motor neuron and all the muscle cells it innervates is called a:
 
End of Question 1


Question 2
2 Stimulation of additional motor units will increase the strength of contraction. This process is called:
 
End of Question 2


Question 3
3 Where is the interneuron located?
 
End of Question 3


Question 4
4 The muscles of the eye need to make precise small motor movements. What size are the motor units in the eye?
 
End of Question 4


Question 5
5 The muscles of the thigh exhibit gross movements for walking. What size are the motor units in the thigh?
 
End of Question 5


Question 6
6 Random, asynchronous motor unit contractions provide a low-level tension and resistance to stretch called muscle __________.
 
End of Question 6


Question 7
7 What will happen to a muscle if the motor neuron is cut?
 
End of Question 7


Question 8
8 Where is the motor neuron located?
 
End of Question 8


Question 9
9 In the quiz, what was the size of the motor units required in the arms and legs of the offensive player so that he could make the basket?
 
End of Question 9


Question 10
10 The synapse between a motor neuron and the muscle it innervates is called a:
 
End of Question 10


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