An inhibitory postsynaptic potential (IPSP) typically involves the opening of

A. Sodium channels

B. Calcium channels

C. Chloride or potassium channels

✓

D. Proton channels

📝 Explanation

Opening Cl⁻ channels (allowing Cl⁻ influx) or K⁺ channels (allowing K⁺ efflux) leads to hyperpolarization, moving the membrane potential further away from the threshold and inhibiting the neuron.

📖 Additional Information

Sodium channels
Calcium channels
Chloride or potassium channels
Proton channels

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