EXPLAIN MECHANISM OF BREATHING..
Answers
Answer:
The Mechanism of breathing is the process by which Oxygen-rich Gas is inhaled and the Carbon Dioxide is exhaled. During Inspiration ribs move up and outwards and the Diaphragm moves down. This movement increases space in our chest cavity and air rushes into the Lungs.
It takes place when the volume of thoracic cavity is increased and the air pressure is decreased. Simultaneous contraction of the external intercostal muscles and the diaphragm expands the thorax. As the diaphragm + external intercostals contracts (moves downward) lung volume increases.
Explanation:
This is movement of air into and out of the lungs. Breathing supplies oxygen to the alveoli, and eliminates carbon dioxide. The main muscles involved in breathing are the intercostal muscles and the diaphragm. ... Breathing depends upon changes in pressure and volume in the thoracic cavity.