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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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