Attempt the USMLE Step 1 question(s) below, pick one answer from the multiple choices, then get the correct answer by clicking “get answer” button.
Question:
A chemist is accidentally exposed to an experimental nerve gas. Within minutes, he begins to experience severe spastic muscular paralysis, hypotension, bradycardia, vomiting, and excessive secretion of tears from his eyes and saliva from his mouth. After quickly administering the antidote, an atropine injection, he soon recovers from his symptoms, although he continues to exhibit muscular spasms for a longer time. Which of the following biochemical events does this nerve gas affect?A. Breakdown of a neurotransmitter
B. Packaging of a neurotransmitter
C. Receptor binding of a neurotransmitter
D. Reuptake of a neurotransmitter
E. Synaptic release of a neurotransmitter
F. Synthesis of a neurotransmitter
