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प्रश्न
Give reasons for the following:
Alveoli in lungs are richly supplied with blood capillaries.
कारण बताइए
उत्तर
- The alveoli in the lungs exchange gases (mainly oxygen and carbon dioxide) between the air and blood.
- The rich supply of blood capillaries around the alveoli ensures efficient gas exchange.
- Inhaled oxygen diffuses into the bloodstream through capillaries, whereas carbon dioxide generated during cellular respiration travels to the alveoli for exhalation.
- The proximity of capillaries to alveoli allows for quick gas exchange, resulting in efficient oxygen absorption and carbon dioxide removal.
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