Question

Describe mechanism of breathing.

Answer 1

Answer:

Mark it as brainleist.

Explanation:

Breathing occurs when the contraction or relaxation of muscles around the lungs changes the total volume of air within the air passages (bronchi, bronchioles) inside the lungs. When the volume of the lungs changes, the pressure of the air in the lungs changes in accordance with Boyle's Law.

Answer 2

$\huge\underline\mathcal\red{Mechanism\:of\:breathing}$

=> It is the physical process of inhalation of oxygen into lungs and exhalation of carbon dioxide from lungs to exterior. It is the most important and initial step in respiration bringing the oxygen to lungs for exchange with carbon Dioxide of blood.

It involves in two phases :

• Inspiration
• Expiration

Thanks!❤️