Question

explain the structure of lungs​

Answer 1

Answer:

The functional unit of the lungs which is the acinus includes the respiratory bronchioles, alveolar ducts, and sacs and the alveolar. Approximately 16 generations of branching occur from the trachea to the terminal bronchioles. As the air passageways of the lungs become smaller, the structure of their walls changes.

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Answer 2

Answer:

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=>Lungs are the chief centres of the respiration in humans and other vertebrates. They are located in the thoracic cavity of the chest near the backbone and on either side of the heart. We have a pair of lungs, which are sac-like structures and covered by a double-layered membrane known as pleura.They are the pair of large, spongy organs, mainly involved in the exchange of gases between the blood and the air. Compared to the left lung, the right lung is quite bigger and heavier.

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=>The main function of the lungs is the process of gas exchange called respiration (or breathing). In respiration, oxygen from incoming air enters the blood, and carbon dioxide, a waste gas from the metabolism, leaves the blood. A reduced lung function means that the ability of lungs to exchange gases is reduced

Explanation:

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