Which of the Following Defines a Motor Unit

question 102

Multiple Choice

Which of the following defines a motor unit?

• A) a single motor neuron and all of the muscle fibers it innervates
• B) a single muscle fiber and all of the motor neurons that innervate it
• C) all of the motor neurons and muscle fibers necessary to produce a single movement
• D) a group of motor neurons and muscle fibers that activate together

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Definitions:

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Wyoming

A state in the mountain region of the western United States known for its vast plains and rugged mountain ranges.

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Mississippi Valley

A broad, fertile region in the United States that surrounds the Mississippi River and its tributaries, known for its significant agricultural productivity.