(electrical impulse): a change in membrane potential that
generating a signal.
channels to
a. An adequate stimulus acts on a neuron can trigger the ligand-gated
open, allowing Nat to diffuse rapidly into the cell, producing a local depolarization.
b. When
potential is reached, the mechanically -gated
channels open and more Nations enter the cell, causing further
C. This state is an all-or-none response. And it is an example of positive feedback mechanism.
d. The above channels just stay open for only about 1ms and then automatically close.
e. After action potential peaks, membrane begins to move back toward the resting membrane
channels open, allowing
potential due to the activation of
_-gated
outward diffusion of K+ : process is known as repolarization,