Question

how nervous system works? please write a paragraph and provide a good diagram

Answer 1

Nervous system is one of the systenm in our boady.it control and coordinate all the functions.The parts of the nervous system are

• nerves
• brain
• spinalcord

Brain and spinal cord together nown as central nervous system and nerves togher known as peripheral nervous system

The important part of the nervous systemis the brain ,it controll all voluntary and invoulantary actions.Mainly it has tree parts cerebrum ,cerebellum,medulla oblongata other sub parts thalamus and hypothalamus cerebrum control all voulantary actions and center for the all sensations like smell,hearing,vision,taste,etc.It also center for the all feelings thouht,memmory,creativityetc .Cerebellam control and coordinate all muscular activities.medulla controll all involantary actions such as breathing,movements in the alimentary canal,blood vessals,vomiting,cough,sneezing.thalamas act as acenter of relay station of all impuls from and out of the brain.hypothalamus most important part of keeping homeostasis in our boady throuh controll over the endocrine system in our boady.

spinal cord is the second importnt part of the nervous system.It act as center of collecting impulsess from nerves and reaaching to the brain,and vice versa.It also center for the reflex actions

Nerves are different types .The sensory nerves,motor nerves and mixed nerves.Sensory nervess carries impulse to the brain,motor nerves colllect the impulse to the body parts,mixed nerves can carry both types of impulse.

Neuron or nerve cells are the functional and structural units of the nervous system.Dendrites, axon and cellboady are the part of a neuron.Dendrite collct impulses from adjacent neuron and pass throuh the celldoady,axon and reach the end of te axon synaptic knob of the axonite,the braanch of axon, producing acetincolin a neurotransmitters which help to pass the impulse to the next neuron throuh the small gap between two neuron