EPSPs (Excitatory Postsynaptic Potentials) Occur When

Question

EPSPs (excitatory postsynaptic potentials) occur when
A) more potassium ions than usual leak out of a cell.
B) more calcium ions than usual leak out of a cell.
C) chloride ions enter a cell.
D) extra sodium ions enter a cell.
E) hyperpolarizations occur.

Accepted Answer

EPSPs occur when extra sodium ions enter a cell, leading to depolarization of the cell membrane and increased likelihood of generating an action potential.