What Is an Ipsp and Epsp

An EPSP is received when an excitatory presynaptic cell, connected to the dendrite, fires an action potential. … An inhibitory postsynaptic potentials (IPSP) is a temporary hyperpolarization of postsynaptic membrane caused by the flow of negatively charged ions into the postsynaptic cell.

What are EPSPs and IPSPs and what is their function?

Excitatory and inhibitory postsynaptic potentials In this case, the shift in membrane potential is called an excitatory postsynaptic potential, or EPSP. In other cases, the change makes the target cell less likely to fire an action potential and is called an inhibitory post-synaptic potential, or IPSP.

What is EPSP and IPSP quizlet?

Terms in this set (14) EPSP (excitatory postsynaptic potential) is a temporary depolarization of postsynaptic membrane caused by the flow of positively charged ions into the postsynaptic cell as a result of opening of ligand-sensitive channels. IPSP (inhibitory postsynaptic potential)