(1) Mention four important characteristics of the human heart.
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Answer:
characteristics of human heart..
The heart has four chambers: two atria and two ventricles.
The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle.
The right ventricle pumps the oxygen-poor blood to the lungs.
The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.
Four important characteristics of the human heart are as follows:-
# Human heart has 4 chamber
the two upper chambers are called Atria and the lower one is called ventricles
# Human heart is roughly of the size of a fist.
Its weight is about 280 to 340 grams in male and 230 to 280 grams in female.
# Human heart is surrounded by double layer tissue known as pericardium and between them is the pericardium fluid.
# Heart consist of two valve one is tricuspid valve and other is bicuspid valve.