Question

which body parts involves in inhale and enhale​

Answer 1

Answer:

Two important structures for breathing are the diaphragm and intercostal muscles.

Explanation:

When inhaling, the diaphragm contracts and moves downwards. The intercostal muscles contract and move the ribs upwards and outwards. This increases the size of the chest and decreases the air pressure inside it which sucks air into the lungs.

When exhaling, the diaphragm relaxes and moves back to its domed shape. The intercostal muscles relax so the ribs move inwards and downwards under their own weight. This decreases the size of the chest and increases the air pressure in the chest so air is forced out of the lungs.