How are lungs designed in human beings to maximise the area for exchange of gases?
Answers
Answered by
53
Lungs contain millions of alveoli which provide a surface for the exchange of gases. An extensive network of blood vessels is present in the wall of thealveoli. By lifting our ribs and flatten the diaphragm, the chest cavity becomes spacious. Air is sucked into the lungs and alveoli. The oxygen from the breath, diffuses into the blood and CO2 from the blood brought from the body, diffuses out into the air.
Answered by
86
The lungs have millions of alveoli , which are richly supplied with blood through capillaries. They are designed to have a maximum surface area to increase the rate of absorption of gases.
Mark it as brainliest if it helped !
Mark it as brainliest if it helped !
Similar questions