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Question

What is the physiology of breathing?


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Solution

Breathing:

  1. The term physiology refers to the mechanisms of living things.
  2. The process of exchange of O2 from the atmosphere with CO2 produced by the cells is called breathing.
  3. It is commonly known as respiration.

The physiology of breathing involves two stages.

  1. Inspiration: This occurs if the intra-pulmonary pressure is less than the atmospheric pressure. This is negative pressure.
  2. Expiration: This occurs if the intra-pulmonary pressure is more than the atmospheric pressure.

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