Moderate

Non- respiratory function of the lung is_________________?

Correct answer: C. Serotonin metabolism

  • A. Dopamine metabolism
  • B. Adrenaline metabolism
  • C. Serotonin metabolism
  • D. PGE2 production

Explanation

Pulmonary endothelial cells metabolise circulating serotonin, making serotonin clearance a recognised non-respiratory function of the lungs. The lungs also handle several vasoactive substances, but serotonin is the standard option here.

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