Nervous System - Get to know our nervous system a bit closer, how does it works? | Neurology

today we will talk about an organ that

rules all of our body and that is our

brain as it is the most sensitive organ

our brain is kept inside a bony covering

called skull from doing physical

activity to solving logical problems

from dealing with emotions and feeling

to creativity the brain is responsible

for all therefore it never sleeps our

brain can be divided into three main

parts the cerebrum the cerebellum and

brain stem Sarab room is the largest

part of brain which can be further

divided into right and left halves

called hemisphere each cerebral

hemisphere has four lobes namely frontal

lobe parietal lobe occipital lobe and

temporal lobe each lobe performs

different functions cerebellum is

responsible for movement and

coordination it gives you sense of

balance and thus prevents you from

falling down brainstem includes midbrain

pons and medulla oblongata it controls

your body's involuntary actions like

breathing heart rate and blood pressure

brain comes under a system called

nervous system structurally nervous

system is classified into two types

central nervous system CNS and

peripheral nervous system pns the

central nervous system comprises of the

brain and spinal cord

the spinal cord is the bridge that

connects the brain to peripheral nervous

system it starts from medulla oblongata

and stretches to lumbar region of the

spine of vertebral column the peripheral

nervous system is a network of nerves

spread across our body think of

peripheral nervous system as a network

of highway that connects the body with

central nervous system this highway has

two-way traffic let's see how when you

hold a hot cup of coffee sensory neurons

in your hand transmit signal to brain

through sensory neurons also called

afferent neurons that the cup is hot

your brain processed that information

and send responds through motor neurons

known as

efferent neurons that you must flip that

cutback pns consists of total 43 pairs

of nerve among which 12 originating

brain named as cranial nerves and 31

originated from spinal cord hence called

as spinal nerves here you hear the word

neuron neuron is the basic unit of

nervous system it is the nerve cell

which transmit electrical signals to

brain a neuron has three parts dendrites

soma or cell body and axon dendrites

servers input device for neuron because

it receives input from other nerve cells

soma or cell body of neuron contains

nucleus axon server's output device from

where it transmit electrical response to

other neurons I hope this helps you in

understanding nervous system