Which of the Following Statements Regarding the Motor End Plate

question 58

Multiple Choice

Which of the following statements regarding the motor end plate of a skeletal muscle fiber is TRUE?

• A) Muscarinic receptors in the end plate are activated by binding to acetylcholine.
• B) Temporal summation of multiple end plate potentials is required in order to trigger an action potential in the muscle-fiber membrane.
• C) Acetylcholinesterase in the end plate membrane catalyzes the breakdown of acetylcholine.
• D) Sympathetic nerve fibers terminate on skeletal muscle fibers at the motor end plate.
• E) The motor end plate under the axon terminal contains a large number of voltage-gated Na⁺ channels.

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Variable Costs

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