An excitatory postsynaptic potential lasts for about
A)15 minutes.
B)15 seconds.
C)15 milliseconds.
D)15 microseconds.

Question

Quizplus · Accepted Answer

An excitatory postsynaptic potential (EPSP) typically lasts for about 15 milliseconds. This is because EPSPs are caused by the brief influx of positively charged ions into the postsynaptic neuron, which activates various cellular processes that ultimately lead to an action potential. The duration of an EPSP is determined by the properties of the receptors and channels involved in neurotransmitter release and signaling, as well as the overall membrane properties of the postsynaptic neuron. While EPSPs can vary in amplitude and duration depending on these factors, 15 milliseconds is a commonly cited estimate for their typical duration.

An Excitatory Postsynaptic Potential Lasts for About