Which of the following is not a derivative of the middle ear cleft ?
Ans. is 'a' i.e., Semicircular canal The middle - ear cleft in the temporal bone includes :? Eustachian tube The middle ear (tympanic cavity) Aditus which leads posteriorly to the mastoid antrum and air cells.
Semicircular canal
Mastoid air cell
Tympanic cavity
Eustachian tube