How does the lung design in humans aid in increasing the efficiency of gaseous exchange?
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Answer:
Explanation:
Although it is often stated that the structure of the human lung is ideally suited to its gas exchange function, the lung is very vulnerable under some abnormal conditions. One example is the postoperative period in a patient with an otherwise normal lung where retained secretions can rapidly cause unventilated areas or atelectasis and substantial impairment of gas .
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Lung is designed in such a way so that efficiency of gaseous exchange between the lung epithelium and the gas is increased
Explanation:
- the lung has a single layer of epithelium. As a result of this there is diffusion of gases between the blood and the bronchioles.
- In addition to this the lung is also situated in a thorax in which due to pressure difference there is adequate flow of the gases from the atmosphere to the lungs.
- The lungs is also aided by the diaphragm- the contraction and relaxation of which helps the fresh air to enter the lungs during inspiration and the the carbon dioxide to exit the lungs during expiration
to know more about the mechanism of inspiration and expiration,
What is the mechanism of inspiration and expiration? Brainly.in
https://brainly.in/question/7424753
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