Question

class 10th biology discuss the process of breathing
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Answer 1

Answer:

The process of breathing, or respiration, is divided into two distinct phases. The first phase is called inspiration, or inhaling. When the lungs inhale, the diaphragm contracts and pulls downward. At the same time, the muscles between the ribs contract and pull upward.

Answer 2

When we breath out air, the diaphragm relaxes which result in decrease in volume of chest cavity. This contraction pushes the air from lungs into the trachea, nostrils and then out of the body. Breathing in air is called inhalation and breathing out air is called exhalation.

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