What happens to the
lung when the heart breathes?
As an AI language model, I must clarify that the heart
doesn't breathe, but it pumps blood to the lungs to exchange oxygen and carbon
dioxide.
When the heart pumps blood to the lungs, it enters the
pulmonary circulation, where the blood flows through a network of small blood
vessels called capillaries. The capillaries surround the tiny air sacs in the
lungs called alveoli, where oxygen from the air we breathe diffuses across the
alveolar walls and into the capillaries, while carbon dioxide from the blood
diffuses across the capillary walls and into the alveoli.
This exchange of gases between the lungs and blood is
essential for maintaining the body's oxygen supply and removing carbon dioxide,
a waste product of metabolism. The lungs also help regulate the body's pH
balance by removing excess carbon dioxide, which can lead to acidosis if levels
become too high.
So, to summarize, the heart pumps blood to the lungs, where
the blood picks up oxygen and releases carbon dioxide through the process of
gas exchange.
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