what is the ratio in which year to install spotted in blood from tissue back to lungs from veins as
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How does gaseous exchange take place at blood level?
Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
Explanation:Why is the base of the lung better ventilated?
Ventilation is 50% greater at the base of the lung than at the apex. ... As a result, alveoli are less expanded and have higher compliance at the base, resulting in a more substantial increase in volume on inspiration for increased ventilation.
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