Question

walden university question 6 1 pts question: which ion channel is primarily responsible for the inhibitory action of gaba in the central nervous system? sodium channel potassium channel calcium channel chloride channel previous next

Explanation:

GABA (gamma - aminobutyric acid) is an inhibitory neurotransmitter in the central nervous system. When GABA binds to its receptor, it mainly opens chloride channels. The influx of chloride ions into the neuron hyperpolarizes the cell membrane, making it less likely to generate an action potential, thus mediating the inhibitory effect. Sodium channels are involved in depolarization (excitatory processes in neurons), potassium channels have roles in repolarization and some regulatory functions but not the primary inhibitory action of GABA, and calcium channels are involved in processes like neurotransmitter release and excitatory signaling in many cases. So the chloride channel is responsible for GABA's inhibitory action.

Answer:

D. Chloride channel