Modiolus is directed: (A) Anterolateral-inferior, (B) Anterolateral-superior, (C) Posteromedial-inferior, (D) Posteromedial-superior
Answer is A. The bony cochlea resembles the shell of a common snail. It forms the anterior pa of the labyrinth. It has a conical central axis known as the modiolus around which the cochlear canal makes two and three quaer turns. The modiolus is directed forwards ( anteriorly ) and laterally.