Question

Describe the mechnism of breathing and respiration in human beings?
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Answer 1

Answer:

The process of taking air into and expelling it from the lungs is called breathing. The action of breathing in and out is due to changes of pressure within the thorax, in comparison with the outside. ... When we inhale the intercostal muscles (between the ribs) and diaphragm contract to expand the chest cavity.

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Answer 2

Answer:

Breathing

• The process of breathing in oxygen and releasing carbon dioxide is known as breathing. It takes place outside the cells. It is a physical process and no energy is released during breathing.

Respiration

• The process by which oxygen is inhaled and then it then the energy is released inside the body of a living organism is known as respiration. It's a chemical process and it takes place inside the cells

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