Neural Impulse?

Question

Can someone please help me explain the Neural Impulase---- Including what the, resting potential, action potential and the all-or-none-principle is?? I am having a really hard time!

Answer 1

Communication between neurons is an electrochemical process.
Messages are gathered by the dendrites and cell body and then transmitted along the axon in the form of a brief electrical impulse called an action potential.
Action Potential is a brief electrical impulse by which information is transmitted along the axon of a neuron.
Ions from other neurons are absorbed.
The axon membrane opens and closes ion channels that allow ions to flow into and out of the axon.
Each neuron requires a minimum level of stimulation from other neurons or sensory receptors to activate it.
This minimum level of stimulation is called the neuron's stimulus threshold.
Negatively charged ions stimulate the neuron.
While waiting for sufficient stimulation to activate it, the neuron is said to be polarized.
The axon's interior is more negatively charged than is the exterior fluid surrounding the axon.
When the charge is about -70 millivolts the neuron has reached Resting Potential which is a state in which it is prepared to activate and communicate its message if it receives sufficient stimulation.
The All-or-none law is the principle that either a neuron is sufficiently stimulated and an action potential occurs or a neuron is not sufficiently stimulated and an action potential does not occur.

Answer 2

the all in none principle says that either there will be enough charge for an action potential or nothing will happen(no signal sent). resting potential is when there is no action potentials going on and cell is in rest. action impulse=the cell is sending its signal to another cell or cells