Question

how does the heart work ?? for class 7

Answer 1

Answer:

The heart acts as pump and brings about movement of blood in the body. All the atria and ventricles of the heart contract and relax at appropriate times and makes the heart behave like pump. since ventricles have to pump blood into various organs with high pressure they have thicker walls than atria.

Answer 2

$\huge \blue{Answer}$

This is for class 7

Hope it helps you . . .☆