Nicotinic receptors are found in autonomic ganglia and at the neuromuscular endplate, and they are also present in which gland?

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Multiple Choice

Nicotinic receptors are found in autonomic ganglia and at the neuromuscular endplate, and they are also present in which gland?

Explanation:
Nicotinic receptors are ligand-gated ion channels that respond to acetylcholine and are found at the neuromuscular endplate and in autonomic ganglia. The adrenal medulla is a modified sympathetic ganglion whose chromaffin cells express these same nicotinic receptors. When acetylcholine from preganglionic sympathetic fibers binds to them, chromaffin cells release catecholamines (epinephrine and norepinephrine) into the bloodstream. That neuroendocrine response explains why the adrenal medulla has nicotinic receptors.

Nicotinic receptors are ligand-gated ion channels that respond to acetylcholine and are found at the neuromuscular endplate and in autonomic ganglia. The adrenal medulla is a modified sympathetic ganglion whose chromaffin cells express these same nicotinic receptors. When acetylcholine from preganglionic sympathetic fibers binds to them, chromaffin cells release catecholamines (epinephrine and norepinephrine) into the bloodstream. That neuroendocrine response explains why the adrenal medulla has nicotinic receptors.

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