This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharynx, Subject name: ENT
Crypta magna is seen in 
Select and explain. 
A. Nasopharyngeal tonsil, B. Lingual tonsil, C. Tubal tonsil, D. Palatine tonsil
D: Palatine tonsil
Answer: D: Palatine tonsil 
Explanation: APPLIED ANATOMY OF PALATINE (FAUCIAL) TONSILS Medial surface of the tonsil is covered by nonkeratinizing stratified squamous epithelium which dips into the substance of tonsil in the form of crypts. Openings of 12-15 crypts can be seen on the medial surface of the tonsil. One of the crypts, situated near the upper pa of tonsil is very large and deep and is called crypta magna or intratonsillar cleft. It represents the ventral pa of second pharyngeal pouch. From the main crypts arise the secondary crypts, within the substance of tonsil. Crypts may be filled with cheesy material consisting of epithelial cells, bacteria and food debris which can be expressed by pressure over the anterior pillar. Ref:- Dhingra; pg num:-257