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: Anatomy
Elastic cailage is absent in: March 2011, March 2013 
Select and explain. 
A. Epiglottis, B. Trachea, C. External auditory canal, D. Auricle of the ear
B: Trachea
Answer: B: Trachea 
Explanation: Ans. B: Trachea Elastic cailage is present in the pinna, external auditory meatus, eustachian tubes, epiglottis, vocal process of arytenoids cailage