write a detailed note on transport of gases in human beings?
Answers
Answer:
The transportation of gases throughout the body takes place in the bloodstream through the action of the cardiovascular system (heart and blood vessels), as can be seen in the adjacent image. ... Once CO2 is transported to the lungs it diffuses out of the capillaries into the alveoli and exhaled out of the lungs.
Answer:
Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.Once the oxygen diffuses across the alveoli, it enters the bloodstream and is transported to the tissues where it is unloaded, and carbon dioxide diffuses out of the blood and into the alveoli to be expelled from the body.Air-breathing of humans, respiration of oxygen includes four stages: Ventilation from the ambient air into the alveoli of the lung. Pulmonary gas exchange from the alveoli into the pulmonary capillaries. Gas transport from the pulmonary capillaries through the circulation to the peripheral capillaries in the organs.Gas exchange is important because it provides oxygen to the cells of living organisms so that they can obtain energy from organic molecules.Three processes are essential for the transfer of oxygen from the outside air to the blood flowing through the lungs: ventilation, diffusion, and perfusion. Ventilation is the process by which air moves in and out of the lungs.
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