From left to right, indicate whether the transmitter-gated channels for (1) calcium, (2) chloride, (3) potassium, and (4) sodium at a chemical synapse usually open in response to excitatory (E) or inhibitory (I) neurotransmitters. Your answer would be a four-letter string composed of letters E and I only, e.g. EEIE.

Question

Quizplus · Accepted Answer

Excitatory neurotransmitters open cation channels leading to sodium or calcium influx and postsynaptic membrane depolarization, whereas inhibitory neurotransmitters open potassium or chloride channels, suppressing firing by making depolarization harder.

From Left to Right, Indicate Whether the Transmitter-Gated Channels for (1)