This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
Most radiosensitive organ is: March 2005 
Select and explain. 
A. Liver, B. Fat, C. Bone marrow, D. Nervous tissue
C: Bone marrow
Answer: C: Bone marrow 
Explanation: Ans. C: Bone Marrow Most radiosensitive organs: Bone marrow Gonads Growing cailage Prepubescent breast Organs with lowest radiosensitivity: Adrenal Vagina Uterus Pancreas