How are lungs designed in human beings to maximise the area for exchange of gases ?
Answers
Answer:
The exchange of gases take place between the blood capillaries that surrounds the alveoli and the gas present in the alveoli. Thus, alveoli are the sites for exchange of gases. The lungs get filled up with the air during the process of inhalation as ribs are lifted up and diaphragm is flattened. The air that is rushed inside the lungs fills the numerous alveoli present in the lungs. Each lung contain 300-350 alveoli. These numerous alveoli increase the surface area for gaseous exchange making the process of respiration more efficient.
Answer:
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Explanation:
The structure of lungs in a human body is designed in a way to maximize the exchange of gases. Alvoli are present on the tips of every nerve ending which increases the surface area of the lungs and provides more exposure for the exchange of gases. These alvoli are in millions of numbers. The exchange of gases and successful breathing process occurs mainly through them.