Question

फतेक्सर एवं एक्सटेनसर पेशी कार्य में एक दूसरे के विपरीत है - एक उदाहरण द्वारा इस तथ्य की व्याख्या करो।।​

Answer 1

Answer:

The human respiratory tract is made up of nostril, larynx, nasal chamber, pharynx, trachea, epiglottis, alveoli, bronchioles, bronchi and lungs. Within the lungs, the oxygen is exchanged for carbon dioxide waste through millions of microscopic sacs known as alveoli. The oxygen inhaled diffuses into the capillaries of the lungs, binds to the haemoglobin and is pumped into the bloodstream. The carbon dioxide from the blood diffuses through the alveoli and is expelled by exhalation.

Explanation:

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