Bronchial mucosa secretes all except?: (A) Bombesin, (B) Calcitonin, (C) Serotonin, (D) Bradykinin
Answer is D. Ans. (d) Bradykinin(Ref: Robbins 9th/pg 669-670)Bronchial mucosa contains neuroendocrine cells that have neurosecretory-type granules releasing: serotonin Q, calcitonin Q, and gastrin-releasing peptide (bombesin) Q