Question

How do neurons communicate? place in order the sequence of events that occurs when a neuron fires?

Answer 1

Answer;

-Dendrites receive chemical signals.

-When more excitatory than inhibitory signals are received, the cell depolarizes.

-An action potential is set off and travels through the cell and down the axon.

-The action potential excites the terminal buttons to release their chemicals into the synaptic cleft.

Explanation;

-The electrical signal that passes along the axon and subsequently causes the release of chemicals from the terminal buttons

. Chemical signals (excitatory and inhibitory signals.

-Positive sodium pours into the breach, Action potential propagates along the axon, after firing returns to its slightly negative resting state.

-An action potential can be generated if the amount of excitatory input can raise the membrane potential to -55 mV. This then floods the cell with sodium ions and raises the membrane potential. When it reaches a certain point (about +30 mV), the sodium ion channels close and the potassium ion channels open. This drops the membrane potential back down.