Describe the function and working of human heart in detail
Answers
Answer:
The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes.
Explanation:
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Answer:
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".
Function of the Heart
The heart is the main organ in the circulatory system, the structure primarily responsible for delivering the circulation of blood and transportation of nutrients in all parts of the body. This continuous task uplifts the role of the heart as a vital organ whose normal operation is constantly required
Explanation: