If you removed the external Ca⁺⁺ at the neuromuscular junction, you would most directly affect which of the following? A) action potential in motor neuron B) acetylcholine exocytosis C) end-plate potential D) None of the choices would be affected.

Question

Quizplus · Accepted Answer

Removing external calcium ions would most directly affect acetylcholine exocytosis because calcium ions are crucial for the vesicle fusion process that releases neurotransmitters into the synaptic cleft.

If You Removed the External Ca++ at the Neuromuscular Junction

If You Removed the External Ca⁺⁺ at the Neuromuscular Junction