Acetylcholine usually induces an excitatory postsynaptic potential when binding to ________ receptors and an inhibitory postsynaptic potential when binding to some ____________ receptors.
A)NMDA,nicotinic
B)nicotinic,muscarinic
C)muscarinic,NMDA
D)muscarinic,nicotinic

Question

Quizplus · Accepted Answer

Acetylcholine induces an excitatory postsynaptic potential when it binds to nicotinic receptors, which are ionotropic and allow the flow of positive ions into the cell, depolarizing it. When acetylcholine binds to some muscarinic receptors, which are metabotropic and can activate various G-protein mediated pathways, it can induce an inhibitory postsynaptic potential by opening potassium channels, allowing potassium to exit the cell and hyperpolarizing it.

Acetylcholine Usually Induces an Excitatory Postsynaptic Potential When Binding to ________