Excitatory postsynaptic potentials can occur as either fast or slow responses.

Question

Quizplus · Accepted Answer

Excitatory postsynaptic potentials (EPSPs) can indeed occur as either fast or slow responses depending on the type of neurotransmitter and receptor involved in the synaptic transmission. Fast EPSPs are typically mediated by neurotransmitters like glutamate acting on ionotropic receptors, leading to immediate ion channel opening and rapid depolarization. Slow EPSPs, on the other hand, are often mediated by metabotropic receptors that activate second messenger systems, leading to a more prolonged depolarization.

Excitatory Postsynaptic Potentials Can Occur as Either Fast or Slow