Which of the following is true of the cholinergic systems?

Question

Quizplus · Accepted Answer

Muscarinic receptors are indeed more numerous than nicotinic receptors in the brain. This is because muscarinic receptors are G protein-coupled receptors that mediate a variety of physiological functions including heart rate, smooth muscle contraction, and cognitive functions, which are widespread throughout the brain. Nicotinic receptors, while present in the brain, are less numerous and are ligand-gated ion channels primarily involved in the neuromuscular junction and autonomic ganglia.

Which of the Following Is True of the Cholinergic Systems