We know the sodium/potassium pump moves ions across the membrane and creates a concentration gradient and an
electrical voltage called the "resting potential"...How is this turned into
an "action potential "(the pulse) that passes along the axon? (MUST use
these 4 terms "dendrite", "axon hillock", "voltage-gated ion channel and
"nodes of ranvier"). *

Correct Fill in the blank
This begins when there is enough stimulus from the
to cause a big change
in voltage. This change stimulates the
at the axon hillock to open and
create a large change in voltage (called the action potential). As the action potential
travels along the axon it is boosted by additional
located at the