Neurotransmission
Lecture 5
Do the practice problems posted on
the website!
The Node of Ranvier as relay
Myelin
sheath
nucleus
Schwann cell or
Oligodendrocyte
soma (cell body)
dendrite
axon terminal
Node of Ranvier
Spacing typically 200
m to 2mm
J Anat. 1971 108:419–432.
Channels are concentrated at
The nodes. Action potential
jumps from node to node.
