Which of the following occurs when an excitatory neurotransmitter binds to a nicotinic receptor A)Voltage-gated Na⁺ channels open. B)Voltage-gated K⁺ channels open. C)Chemically gated Na⁺ channels open. D)Voltage-gated Cl^- channels open.

Question

Quizplus · Accepted Answer

Nicotinic receptors are ligand-gated ion channels that are permeable to both Na⁺ and K⁺. When an excitatory neurotransmitter binds to the receptor, chemically gated Na⁺ channels are opened, triggering depolarization of the membrane potential.

Which of the Following Occurs When an Excitatory Neurotransmitter Binds