Question

Explain the mechanism of Inholation
and exhalation
during breathing in human beings with the help
of a diagram
​

Answer 1

Answer:

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 the high elasticity of the lung tissue and low surface tension of moisture in the lungs, the lungs have higher compliance.

Explanation:

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Answer 2

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• The breathing in human beings takes place through the organs called lungs. The taking in of air rich in oxygen into the body during breathing is called 'inhalation' and giving out (or expelling) the air rich in carbon dioxide is called 'exhalation'. Both, inhalation and exhalation take place regularly during breathing.