When a stimulus stimulates a neuron above the threshold, the action potential is generated.
Action potential
The areas that have had the action potential are refractory to a new action potential.
Why does artifact always appear ahead of action potential?
Action Potential
It creates an action potential
This is called action potential. Action potential is the change in electrical potential that occurs between the inside and outside of a nerve or muscle fiber when it is stimulated, serving to transmit nerve signals.
When a stimulus stimulates a neuron above the threshold, the action potential is generated.
Curare does NOT create an action potential. It binds to nicotinic acetylcholine receptors (which are primarily excitatory), and prevents the formation of an action potential.
It doesn't. I prevents an action potential from forming.
Action potential
action potential
Single action potentials follow the "all or none" rule. That is, if a stimulus is strong enough to depolarize the membrane of the neuron to threshold (~55mV), then an action potential will be fired. Each stimulus that reaches threshold will produce an action potential that is equal in magnitude to every other action potential for the neuron. Compound action potentials do not exhibit this property since they are a bundle of neurons and have different magnitudes of AP's. Thus compound action potentials are graded. That is, the greater the stimulus, the greater the action potential.
The areas that have had the action potential are refractory to a new action potential.
Why does artifact always appear ahead of action potential?
Action Potential
By self regenerating, they mean that when you start an action potential, it continues in proximal (nearby) tissue (e.g., nerve). The depolarization of the action potential continues along the nerve.