When a sensory neuron is excited by some form of energy, the resulting graded potential is called a(n) ________.
A) postsynaptic potential
B) excitatory potential
C) generator potential
D) action potential

Question

Quizplus · Accepted Answer

A generator potential is a graded potential that occurs in a sensory neuron in response to a stimulus. It can be caused by a variety of forms of energy such as heat, light, or pressure. Postsynaptic potentials occur in postsynaptic neurons and are caused by the release of neurotransmitters from presynaptic neurons. Excitatory potentials are a type of postsynaptic potential that depolarize the postsynaptic neuron and increase the likelihood of an action potential. Action potentials are a type of all-or-nothing electrical signal that propagate down the axon of a neuron.

When a Sensory Neuron Is Excited by Some Form of Energy