Which event occurs last at the neuromuscular junction?

A) Neurotransmitters enter the synaptic cleft.
B) Sodium channels on the motor end plate open.
C) An action potential reaches the presynaptic membrane.
D) Sodium enters the muscle fiber.


Answer: D) Sodium enters the muscle fiber.

Anatomy & Physiology

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The electroencephalogram (EEG) is a recording of ________

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Anatomy & Physiology

The negative side effects of non steroidal antiinflammatory drugs (NSAIDs) on the cardiovascular system are mediated by inhibiting which enzyme?

A. COX1 B. g-secretase C. presenilin 1 D. COX2 E. adenylyl cyclase

Anatomy & Physiology