After a muscle is stimulated by a nerve, the impulse spreads along the cell membrane of the muscle. What is this called? threshold
depolarization
action potential
all or none response

action potential

Explanation:

This is an electrical event, called an action potential, that can be used as a cellular signal. Communication occurs between nerves and muscles through neurotransmitters.

you should seek treatment when you are seriously thinking of sui.cide, and that can eventually lead to your own death.

b) the heart is a pump made of muscle and that is difficult to grow in the lab.