Action potentials generally are not propagated along dendrites because dendrites usually have few
A) voltage-gated ion channels.
B) sodium channels.
C) myelin.
D) cell membranes.

Question

Quizplus · Accepted Answer

Dendrites usually have few voltage-gated ion channels, which are necessary for the propagation of action potentials. They do, however, have cell membranes and usually lack myelin. Although sodium channels are also essential for action potential propagation, the fact that dendrites usually have few voltage-gated ion channels is a more specific and accurate reason why action potentials are not propagated along dendrites.

Action Potentials Generally Are Not Propagated Along Dendrites Because Dendrites