Answer :
The lungs are the source of oxygen for the blood, and the blood vessels pass through it in order to exchange the Carbon dioxide that has been produced through respiration, with fresh oxygen to transport to the muscles so respiration may continue.
There are a large number because a larger surface area means more diffusion can occur, and we want the gas exchange to occur as quickly as possible, so when you're working hard and the muscles need more oxygen, this can be provided.
There are a large number because a larger surface area means more diffusion can occur, and we want the gas exchange to occur as quickly as possible, so when you're working hard and the muscles need more oxygen, this can be provided.
Lungs are one of the most important organs of respiration. They have a large number of blood vessels to maintain the process of gas exchange as fast as possible.
What do you mean by Lungs?
Lungs may be defined as a pair of an organ which is responsible for the intake of oxygen and release of carbon dioxide.
It is only the lungs that provide oxygen to whole body parts. Blood vessels like pulmonary arteries and veins are responsible for carrying the oxygenated blood to the heart from the lungs and deoxygenated blood from the heart to the lungs.
In order to maintain and distinguish oxygenated and deoxygenated blood in the same organ, it is required to have a more complex network of blood vessels to run the process smoothly and effectively.
Therefore, it is well described above.
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