This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
Ostamann fat pad is related to 
Select and explain. 
A. Ear lobule, B. Buccal mucosa, C. Eustachian tube, D. Tip of nose
C: Eustachian tube
Answer: C: Eustachian tube 
Explanation: It is related laterally to the membranous pa of the eustachian tube.It helps to keep the tube closed and thus protect it from the reflux of nasopharyngeal secretions. Veical section of Eustachian tube- Ref: Dhingra 6th edition pg. no - 57