Which of the Following Has No Anatomical Connection with the Middle

Question

Which of the following has no anatomical connection with the middle ear?
A) Tympanic membrane
B) Endolymph
C) Eustachian tube
D) Oval window

Accepted Answer

Endolymph is a fluid found in the inner ear, but it has no direct anatomical connection with the middle ear. The tympanic membrane, eustachian tube, and oval window are all structures that are part of the middle ear.