A particular disease of the nervous system specifically involves the Ca²⁺ channels at the chemical synapses of motor neurons where neurotransmitter is stored and released. In other words, this disease affects the A) axon terminals of the presynaptic cell and the release of acetylcholine. B) axon terminals of the postsynaptic cell and the release of K⁺. C) movement of Na⁺ out of the postsynaptic cell. D) axon terminals of the presynaptic cell and the release of K⁺. E) axon terminals of the postsynaptic cell and the release of Cl^-.

Question

Quizplus · Accepted Answer

The Ca²⁺ channels specifically play a role in the release of acetylcholine from the axon terminals of motor neurons. Therefore, a disease affecting these channels would likely impact the release of neurotransmitter from the presynaptic cell, and not the postsynaptic cell or ion movement within the postsynaptic cell. Choice A correctly describes this situation.

A Particular Disease of the Nervous System Specifically Involves the Ca2+

A Particular Disease of the Nervous System Specifically Involves the Ca²⁺