Question

human respiratory system ​

Answer 1

Answer:

Human respiratory system is very useful for generating energy ,the energy stored in ATP molecules one ATP =7200calories

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Answer 2

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▶️▶️ ÅÑẞWËR ◀️◀️

The respiratory system consists of the set of organs and tissues involved in the uptake of oxygen from the atmosphere and the release of carbon dioxide generated during aerobic respiration. This gas exchange is also called breathing or external respiration.

The respiratory system begins in the nose, continues into the pharynx and larynx, leads to the trachea which branch to create bronchi, and finally down the bronchioles into the lungs. This respiratory tree ends in puffy structures called alveoli that are made of a single layer of squamous cells, surrounded by a network of capillaries. Gas exchange occurs within alveoli. Since external respiration in many vertebrates involves lungs, it is also called pulmonary ventilation. Changes to the volume and pressure in the lungs are the primary driving forces for breathing.

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