Question

1. Describe the mechanism of breathing with respect to the movement of diaphragm.
Explain the function of heart ​

Answer 1

Answer:

1. When we inhale air ,our lungs expand to allow more and more air into them ,the diaphragm also contacts and gets smaller ,which allows more area to expand for the lungs ,while exhaling ,the diaphragm and the lungs go back to their normal places which creates pressure in the lung and therefore the air is exhaled

Explanation:

2.Heart is one of the vital organs of the body ,it helps in pumping the bloods,

The veins of the body transport the deoxygenated blood to the heart and the heart pumps the oxygenated blood to the body parts thorigh arteries