Question

plzz explain about heart clearly​

Answer 1

Answer:

heart

Explanation:

1)it is muscular organ

2)it pumps blood through blood vessels of circulatory system

3)it is located between the lungs

4)it has two atria and two ventricles.... etc

Answer 2

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The heart is a hollow muscle, in the middle left of the chest, that pumps blood to different parts of the body. A muscular wall, called septum, divides the heart length-wise into its left and right sides. A valve divides each side into two chambers: an upper atrium and the lower ventricle.

When the heart muscles contract, they squeeze the blood through the atria and then through the ventricles. Oxygenated blood, from the lungs, flows into left atrium and then to all parts of the body. Deoxygenated blood, returning from the body, flows into the right atrium and then to lungs for oxygenation.

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