EMBRYOLOGY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Blood arriving in the capillary from the body has a ____
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Higher concentration of carbon dioxide (CO2) and a lower concentration of oxygen (O2)
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Higher concentration of oxygen (O2) and a lower concentration of carbon dioxide (CO2)
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Venules contain blood that is leaving tissues, so it carries carbon dioxide waste away from these tissues, and venules will therefore have the highest concentration of carbon dioxide.
Detailed explanation-2: -As a result, oxygen diffuses across the respiratory membrane from the alveoli into the blood. In contrast, the partial pressure of carbon dioxide is high in the pulmonary capillaries and low in the alveoli.
There is 1 question to complete.