Question

Mechanisam of respiration in human beings

Answer 1

Answer:

Mechanism of respiration in man takes place in two phases, namely inspiration and expiration. Inspiration is the process of inhaling air into the lungs. During inspiration, the muscles of diaphragm contract and the diaphragm moves downward During expiration, the muscles of diaphragm relax and diaphragm moves upward.

Explanation:

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Answer 2

Answer:

The process of releasing energy from food is called respiration. The process of respiration involves taking in oxygen into the cell, using it for releasing energy by burning food, and then eliminating the waste product from the body.

In other word:

The process of breakdown of food in the cell of the body with the release of energy is called respiration.

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