An excitatory neurotransmitter
A)results in graded depolarization of the dentrites and cell body.
B)promotes excitatory postsynaptic potentials.
C)promotes potassium entry into the neuron.
D)both A and B are correct.

Question

Quizplus · Accepted Answer

An excitatory neurotransmitter results in graded depolarization of the dendrites and cell body, leading to membrane potential moving towards the threshold for firing an action potential. This is known as an excitatory postsynaptic potential (EPSP). Therefore, both option A and B are correct. However, an excitatory neurotransmitter does not promote potassium entry into the neuron.

An Excitatory Neurotransmitter