Question

Explain the working of human heart in short for 0

Answer 1

Hey mate, here is your answer =====

Working of our human heart ===
Our heart simply pumps the blood by a various arrangement of blood vessels.
Firstly the blood comes from lungs to the left side of the heart then by aorta it goes into the right side of the heart.
This is the oxygenated blood which then used by tissues, by using oxygen the blood is deoxygenated which should be oxygenated so it goes again in lungs by pulmonary artery.
This process repeat again and again.

Hope it helps u dear :)

Answer 2

$\huge\textbf{Working of Human Heart}$


→ First of all, all the deoxygenated blood from the body with the help of superior and inferior vena cava came in heart. 

→ After it, it came in Right atrium and then Right ventricle.

→ Contraction of auricles derives most of the blood in into the ventricle. At the end of the auricular systole, auricles start relaxing and the contraction of the ventricles simultaneously.

→ As the contraction of the ventricles begins, the pressure of the blood in the auricles rises. With this pressure, the flaps of the auricular ventricular (A-V) valves are pushes up and meet to close the A-V apertures. This tight closure of the A-V valves at the start of the ventricular contraction produces the first heart beat, which is "Lub".

→ Now the ventricles start relaxing. The semilunar valve close as they get filled the blood trying to return and meet together, closing the outlets of the great arteries. 

→ The closing of the semilunar valves at the start of diastole produces the second heart sound "Dup".
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