Question

How does a nerve impulse travel from one neuron to another?

Answer 1

Hint: Nerve impulses cause the neurons to transfer information to the brain from different body parts and transfer signals produced by the brain to the body.

Complete answer:
1)A nervous system is mainly made up of nerve cells that are present in bundles and the nerve cells are also known as the neurons and the information carried by the neuron is known as the nerve impulse.
2)The nerve impulse is transferred through the neurons and there is a gap present between all the neurons that are also known as the synapse.
3)The nerve impulse travels from one neuron to another through synapse and this transmission of impulse is known as synaptic transmission.
4)The synapse consists of three parts that are the presynaptic membrane also known as the presynaptic knob, the postsynaptic membrane, and the gap between the presynaptic and postsynaptic membrane is known as the synaptic cleft.
5)The nerve impulse when reaches the presynaptic membrane, the flow of calcium ion starts that then reaches to the vesicles present in the presynaptic membrane that releases different neurotransmitters such as serotonin, acetylcholine, etc, this neurotransmitters enters the synaptic cleft and then the neurotransmitters reach the postsynaptic membrane that associates with certain receptors that generate the action potential due to which the neuron is successfully transferred from one neuron to the other neuron.

Note: The neuron is the basic unit of the nervous system through which the nerve impulses are transferred and the neuron consists of a body that consists of dendrites and an axon, the neuron can be unipolar, bipolar, or multipolar based upon the number of dendrites present in the neuron. The axon has a myelin sheath that insulates the axon of the neuron and it facilitates the efficient movement of the nerve impulses.