Question

Q--WHAT ARE THE MECHANISM OF RESPIRATION??

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Answer 1

Answer:

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.

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Answer 2

Explanation:

The respiratory system has protective mechanisms to avoid damage. In the nasal cavity, hairs and mucus trap small particles, viruses, bacteria, dust, and dirt to prevent entry. If particulates make it beyond the nose or enter via the mouth, the bronchi and bronchioles contain several protective devices.

This is movement of air into and out of the lungs. Breathing supplies oxygen to the alveoli, and eliminates carbon dioxide. The main muscles involved in breathing are the intercostal muscles and the diaphragm. ... Breathing depends upon changes in pressure and volume in the thoracic cavity.