Respiratory system is consists of taking breathing oxygen from the air and give off carbon dioxide that is produced in cells.
They have three phases:
1. Exchange in the lungs.
2. The transport of gases.
3. Respiration in cells and tissues.
The air enters the lungs and out of them by breathing movements :
Inspiration in the air enters the lungs because they swell to increase the volume of the rib cage. This is because the diaphragm descends and the ribs are lifted.
Espiration in the air is thrown to the outside because the lungs are compressed to reduce the size of the rib cage, as the diaphragm and ribs return to their normal position.
Really great mechanism for respiratory system. Its amazing..
They have three phases:
1. Exchange in the lungs.
2. The transport of gases.
3. Respiration in cells and tissues.
The air enters the lungs and out of them by breathing movements :
Inspiration in the air enters the lungs because they swell to increase the volume of the rib cage. This is because the diaphragm descends and the ribs are lifted.
Espiration in the air is thrown to the outside because the lungs are compressed to reduce the size of the rib cage, as the diaphragm and ribs return to their normal position.
Really great mechanism for respiratory system. Its amazing..
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