This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Not Mesodermal in origin is 
Select and explain. 
A. Respiratory Tract Lining, B. Kidney, C. Hea, D. Occipital bone
A: Respiratory Tract Lining
Answer: A: Respiratory Tract Lining 
Explanation: Respiratory system* develops from foregut and is endodermal