Please enable JavaScript.
Coggle requires JavaScript to display documents.
respiratory system - Coggle Diagram
respiratory system
-
-
Process
Air is breathed in through the nose or mouth.
When it enters through the nose, it gets spread out by conchae. The conchae help humidify the air, and trap some inhaled particles. Also, it warms the air.
-
During breathing it is pointed upward allowing airflow into the trachea, however, during swallowing it folds
down to prevent food from going into the trachea, directing the food into the esophagus.
Air continues down the trachea and enters the bronchi.
From there it enters into smaller bronchioles, and finally into the alveoli, which are surrounded by a network of capillaries.
Oxygen enters the alveolar sac and the gas exchange occurs. Capillaries give up their waste carbon dioxide, and pick up the oxygen. Carbon dioxide is then exhaled through the air passage the oxygen was inhaled through,
and the oxygen picked up by the blood returns to the heart.
During the breathing process the diaphragm is contracting as we breath in, which allow the lungs to expand, and relaxing as we exhale.
If food does enter the trachea, the gag reflex is induced to protect the respiratory system.
-