<prompt> Ostamann fat pad is related toEar lobuleBuccal mucosaEustachian tubeTip of nose  <response>: 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 