How does a nerve impulse travel down the neuron to another neuron?

Answer 1

By a release & subsequent diffusion of chemicals called neurotransmitters across a very small gap between neurons, called a synapse.

How neurotransmitters are released:As an impulse reaches an end of a neuron, called an axon terminal, the impulse opens ion pores in that axon terminal which allows Calcium ions to enter, which cause the movement of small membrane bounded packets of neurotransmitter chemicals, called vesicles (like tiny water balloons), to move to the cell membrane, where the vesicles fuse into the cell membrane, thus releasing the contents, the neurotransmitters, into the small space (the synaptic cleft) between the axon terminal and the dendrite of the post-synaptic neuron (the neuron the impulse is traveling to). What neurotransmitters do when they reach the post-synaptic neuron:The post-synaptic neuron has many structures each of which are like a combination of a "well", and an open and close able tunnel. The "well" (or hole with a bottom) is a RECEPTOR for the neurotransmitter chemical, in that the neurotransmitter FITS into that well like a key into a lock. And when a neurotransmitter comes to (by diffusion) and enters that well, it affects the shape of the companion tunnel (ION PORE), such that the ion pore OPENS, thus allowing Sodium ions to enter the post-synaptic neuron (normally at a dendrite, the manifold tiny input structures for a neuron). original answer:Nerve impulse traveling

The impulse is actually an electrical current which 'flows' along the nerves cells their 'branches' dendrites and the junctions between nerves but it is not so simple as a regular electrical wire, because a complex biochemical process is also involved. This process is responsible to the first creation of the electrical current, to its recreation some additional times along its passing (- otherwise it would have died out because of the unbelievable lengths such an impulse travels), and to its recreation in any 'new' nerve cell it reaches.

Read more: How_does_an_impulse_travel_from_one_nerve_to_another

Answer 2

A temporal summation (multiple impulses close together in time) or a spatial summation (multiple impulses close together in space) can cause enough ion channels to open allowing enough positive ions to enter the cell to make the the cell sufficiently depolarized to trigger an action potential

Answer 3

It travels down the axon or tail lookin thing to the dendrites wich turns the electrical charges into chemical charges which enters the dendrites of the next cell down the Axon and so on.

Answer 4

i got no idea but i need the answer fro my h/w