Question
Asked Sep 12, 2019

What might prevent an EPSP from stimulating action potentials?

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Step 1

An excitatory postsynaptic potential (EPSP) is the potential of postsynaptic neuron to create an action potential. When the neurotransmitter is released from the presynaptic neuron, it binds with the receptor on the postsynaptic neuron.

 The postsynaptic neuron receptors are called ionotropic receptors since they contain ion channels that are capable of passing the positively charged ions (cations) into the cell or out of the cell. The movement of cations into the cell causes depolarization that increases the EPSP and thus fires an action potential.

Step 2

The neurotransmitters like acetylcholine and glutamate are called excitatory neurotransmitter and are often associated with EPSP whereas the neurotransmitter g...

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