Asked by Farhan Sheikh on Jun 14, 2024

verifed

Verified

Which of these is an example of an EPSP in a typical neuron?

A) A voltage change from 0 mV to +0.35 mV
B) A voltage change from -70 mV to -69.5 mV
C) A voltage change from -69.5 mV to -70 mV
D) A voltage change from +35 mV to 0 mV
E) A voltage change from -70 mV to -70.5 mV

EPSP

Excitatory Postsynaptic Potential; a temporary increase in postsynaptic membrane potential due to the flow of positively charged ions into the postsynaptic cell, making it more likely to fire an action potential.

Voltage Change

A change in the electrical potential difference across a membrane, which can initiate an electrical signal or action potential in neurons and other excitable cells.

  • Explain the significance of excitatory and inhibitory postsynaptic potentials in neural communication.
verifed

Verified Answer

AP
Alejandro PastranaJun 16, 2024
Final Answer :
B
Explanation :
An EPSP (Excitatory PostSynaptic Potential) is a slight depolarization of a postsynaptic cell, bringing the membrane potential closer to the threshold for an action potential. A change from -70 mV to -69.5 mV is an example of depolarization, making it an EPSP.