Structure of Human heart

                                                                                        heart is a part of the

blood circulatory system and probably

the most important part as it is the

part an oven that produces and pumps

blood into your body now do you know

what is the size of your heart it is the

size of the fist that you make you

 know

what is the size of a blue whale's heart

it is a size of a mini golf cart isn't

that really big now the heart is a

muscular organ which is present in the

center of your chest between the two

lungs and it's narrow end is pointed

towards the left side the heart pumps

blood throughout one's life before

understanding how the heart in pump

blood let us understand its structure

first first is the outer covering of the

heart as you can see here the heart has

a double-walled

membrane is covering called the

pericardium now in between these two

walls is present a pericardial fluid

which actually acts as a lubricant so

that there is no friction when your

heart is beating the heart has four

chambers the upper two Oracle's are

atriums that is the left atrium the

right atrium and the lower two

ventricles the left ventricle and the

right ventricle the Oracles receive

blood from the body and pump it into the

ventricles the ventricles send the blood

to long distances such as the toes feet

and even the brain now there are two

blood vessels entering the heart these

blood vessels enter the right atrium

which is your and these are called the

anterior vena cava and the posterior

vena cava they carry deoxygenated blood

the

and Diedre vena cava will get

deoxygenated blood from the upper part

of your body which is above your heart

like the brain chest and arms the

posterior vena cava will get

deoxygenated blood from the lower part

of your body which contains of dorman

gut and the legs now the blood vessels

leaving the heart are pulmonary artery

which arises from the right ventricle

and the IATA artery which arises from

the left ventricle iota is also the

biggest artery present in your body so

what have we learned today we learnt

about the structure of the heart it's

four chambers the oracles the ventricles

and the blood vessels entering the heart

and leaving the heart so until next time