Explain the mechanism of respiration
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Answer:
me : typing the process of respiration , its mechanism etc. but suddenly saw the pic under question and stops ....
Explanation:
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Answer:
Explanation:
Mechanism of Respiration
Mechanism of respiration involves the breathing mechanism and exchange of gases.
The gaseous exchange occurs by diffusion in the alveoli. It depends upon the pressure differences between blood and tissues, or atmospheric air and blood. The exchange of gases takes place at the surface of the alveolus.
The mechanism of breathing has already been explained above. Let us have a look at the steps involved in the exchange of gases.
Key Points On Mechanism of Breathing
Breathing is the physical process of inhaling oxygen and exhaling carbon dioxide.
The mechanism of breathing involves two main processes: inspiration and expiration.
Inspiration occurs when the diaphragm and the external intercostal muscles contract.
Expiration occurs when the diaphragm and the intercostal muscles relax.
The contraction or relaxation of muscles around the lungs changes the entire volume of air inside the lungs, and so does the pressure.
If the pressure inside the lungs is more than the outside, the air rushes out. If the opposite happens, the air rushes in.
Due to high elasticity of the lung tissue and low surface tension of moisture in the lungs, the lungs have higher compliance.