Mechanics of Breathing Flashcards
What happens during INSPIRATION? [REST]
External Intercostals and Diaphragm both contract
What happens to the Thoracic Cavity during inspiration? [REST]
Increases the volume within the Thoracic Cavity
What happens to the partial pressure of gases within the lungs during INSPIRATION? [REST]
What happens as a result of the decrease in partial pressure in the lungs during INSPIRATION? [REST]
What happens during EXPIRATION? [REST]
The External Intercostals and Diaphragm Relax.
What happens to the Thoracic Cavity during EXPIRATION?[REST]
The volume of the Thoracic Cavity Decreaes.
What happens to the partial pressure of gases within the lungs during EXPIRATION? [REST]
What happens as a result of the decrease in partial pressure in the lungs during EXPIRATION? [REST]
What happens during INSPIRATION? [EXERCISE]
The External Intercostals and Diaphragm Contract as well as auxiliary muscles [Sternocleidomastoid and pectorals]
What happens to the Thoracic Cavity during INSPIRATION?[EXERCISE]
What happens during EXPIRATION? [EXERCISE]
The Internal Intercostals contract and External Intercostals and Diaphragm relax
What happens to the Thoracic Cavity during EXPIRATION?[EXERCISE]
The Volume becomes smaller than at rest due to more forceful contractions
What happens to the partial pressure of gases within the lungs during EXPIRATION? [EXERCISE]
What happens as a result of the decrease in partial pressure in the lungs during EXPIRATION? [EXERCISE]
