A Motor Unit Consists of

question 49

Multiple Choice

A motor unit consists of

• A) multiple motor neurons and multiple muscle fibers.
• B) a single motor neuron and the multiple muscle fibers it controls.
• C) multiple motor neurons and the one muscle fiber they control.
• D) one synaptic terminal button, a cleft, and an acetylcholine receptor.
• E) an end plate, a T-tubule, and sarcoplasmic reticulum.

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