Which of the following is NOT a content of medial wall of middle ear:
Ans. (d) Aditus ad antrumReft Dhingra's ENT 6th edj 5-6* Aditus ad antrum is located on posterior wall. It is a doorway to antrum of mastoid.* Antrum is largest mastoid air cell.
Oval window
Round window
Processus cochleariformis
Aditus ad antrum
Ear