HUMAN HEART.
The human heart mainly consist of four hollow chambers.
1.Right atrium (auricle ).
2.Left atrium (auricle ).
3.Right ventricle .
4.Left ventricle.
Now we comes on the major point.
Right atrium.
The heart receives deoxygenated blood in the right atrium or auricle through the two largest veins - the superior vena cava and the inferior vena cava and from there it comes in the right ventricle via tricuspid valve and then the right ventricle pumps the deoxygenated blood and send it to the lungs for the oxygenation of blood through the pulmonary artery.
Left atrium.
Now the oxygenated blood is brought back into the left atrium or auricle through the four pulmonary veins and then from there it is pumped into the left ventricle from where it is pumped to all parts of the body through the dorsal aorta and its branches.
Role of right ventricle.
The right ventricle arises the pulmonary artery which carries the deoxygenated blood to the lungs for the oxygenation.
Role of left ventricle
From the left ventricle arises the dorsal aorta which carries the oxygenated blood to all parts of the body.
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Written by: Mohammad Javed.
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