Where Would You Expect to See an Absence of Neurotransmitters

Question

Where would you expect to see an absence of neurotransmitters?
A)in a synapse
B)in a myelin sheath
C)in a synaptic cleft
D)in the terminus of an axon

Accepted Answer

Neurotransmitters are chemical messengers that transmit signals across a synapse from one neuron to another. They are not found in the myelin sheath, which is an insulating layer that surrounds nerves, including nerve fibers in the brain and spinal cord, to help speed up electrical impulses. The myelin sheath's primary function is to insulate and protect the nerve fibers, not to store or transport neurotransmitters.