Which of the following is produced by Argentaffinoma of ileum?: (A) G.A.B.A, (B) Serotonin, (C) Epinephrine, (D) Nor-epinephrine
Answer is B. Argentaffin cells in Carcinoid tumor produce 5HT derivatives like Serotonin. Epinephrine and Norepinephrine are produced by Chromaffin cells which are seen in Pheochromocytoma.