You are observing the speed of an action potential in a neuron. You note that the conduction speed is quite high (300 kilometres an hour). Most likely, this neuron
A)is found in the autonomic nervous system
B)has many synaptic connections
C)does not have a synaptic cleft
D)uses GABA as the neurotransmitter
E)is covered in a myelin sheath

Question

Quizplus · Accepted Answer

High-speed action potential conduction is typically associated with neurons that are myelinated. The myelin sheath acts as an insulating layer, allowing electrical impulses to jump between the nodes of Ranvier in a process known as saltatory conduction, significantly increasing the speed of transmission.

You Are Observing the Speed of an Action Potential in a Neuron