What is the metabolic role of pulmonary capillaries regarding serotonin (5-HT)?
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Correct answer: They remove and degrade circulating serotonin
Pulmonary endothelial cells are highly active metabolically and can remove or inactivate various circulating substances. Serotonin is one such biogenic amine that is efficiently cleared from the blood as it passes through the lungs.
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More Pulmonary Capillaries questions
- Which of the following helps prevent the collapse of pulmonary capillaries during respiratory movements?
- In cases of left-sided heart failure, what histological change is often seen involving pulmonary capillaries?
- Which cell type is located within the capillary lumen and is responsible for transporting oxygen?
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- Which of the following is true regarding the 'blood-air barrier' thickness?