Release of Acetylcholine at a Neuromuscular Junction

question 33

Multiple Choice

Release of acetylcholine at a neuromuscular junction

• A)decreases the release of Ca₂+ from the sarcoplasmic reticulum.
• B)increases permeability of the sarcolemma to Na+.
• C)decreases the positive charge on the sarcolemma.
• D)lowers the threshold of the muscle fiber.
• E)overrides the inhibitory effect of acetylcholinesterase.

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