Question

I Describe the
function
of heart? in 7grade. ​

Answer 1

Explanation:

heart is the most important part in our body.

Answer 2

the heart is located in the chest cavity with its lower tip slightly titles towards left, heart is roughly the size of our fist. there are 4 chambers in a heart -left atrium, left ventricle, right atrium and right ventrical. pulmonary artery carries carbon dioxide rich blood from the heart to the lungs, pulmonary vein carries oxygen rich blood from the lungs to the heart, arteries and veins are also present in our body. Arteries carry oxygen rich blood from the heart to all parts of the body, veins are vessels wich carry carbon dioxide rich blood from all parts of the body back to the heart. The veins have thin walls. There are valves present in the veins which allow blood to flow only towards heart.

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