Which of the Following Statements Regarding the Motor End Plate

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.