Question

explain, with the help of a diagram, the structure of human lungs and how exchange of gases occurs in the lungs

Answer 1

The trachea branches into two bronchi, tubes that lead to the lungs. ... Red blood cells collect carbon dioxide from the body's cells and transports it back to the lungs. An exchange of oxygen and carbon dioxide takes place in the alveoli, small structures within thelung

Answer 2

Explanation: As the diaphragm contracts and moves downwards,the chest cavity becomes larger and air is sucked from outside the lung. The air first passes through the nasal cavity (the hair in the the nasal cavity stops dirt and other irritants from going inside) and goes into the wind pipe separate into the two bronchus and then bronchi and then lastly after separating into bronchioles it reaches the alveoli. The oxygen from the air diffuses out from the alveoli into the blood capillaries. From there it is pumped to all parts of the body and then deoxygenated air leaves the body as we exhale.

HOPE YOU LIKED MY ANSWER.

PLEASE MARK MY ANSWER AS BRAINLIEST.