This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiration, Subject name: Pathology
Carcinoid of lung (bronchial adenoma) arise from 
Select and explain. 
A. Ciliated cell, B. Kulchitsky cell, C. Type 2 pnemocytes, D. Clara cell
B: Kulchitsky cell
Answer: B: Kulchitsky cell 
Explanation: Ans. (b) Kulchitsky cell(Ref: Robbins 9th/pg 719)Enterochromaffin (EC) cells, or "Kulchitsky cells"; are a type of enteroendocrine and neuroendocrine cell occurring in the epithelia lining the lumen of the digestive tract and the respiratory tract that release serotonin.Tumors from these cells results in carcinoid.