- Created by: ameliabates
- Created on: 29-01-19 16:51
-Decreased volume of chest
-Higher pressure in the chest
-Ribs fall as the intercostal muscles contract
-Diaphragm moves up
-Air travels from the alveoli to the bronchioles, through the bronchi, up the trachea and out of the nasal cavity.
-Increased volume of chest
-Lower pressure in the chest
-Ribs move up and out as the intercostal muscles contract
-Air travels through the nasal cavity, down the trachea, through the bronchi, down the bronchioles and into the alveoli, where gas exchange takes place.