The function of neurofibril nodes is to
A)inhibit the transmission of a nerve impulse.
B)provide points of attachment for nerve threads.
C)produce a faster nerve impulse through salutatory conduction.
D)produce a slower impulse through continuous conduction.
E)protect the delicate axon sheath.

Question

Quizplus · Accepted Answer

Neurofibril nodes, also known as the nodes of Ranvier, are gaps in the myelin sheath of the axon where ion channels are concentrated. These ion channels allow for the depolarization of the membrane to occur, which allows the nerve impulse to jump from node to node through a process called salutatory conduction. This produces a faster nerve impulse compared to continuous conduction, where the impulse travels along the entire length of the axon without skipping any regions.

The Function of Neurofibril Nodes Is to