This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
[{'content': 'Modiolus is directed \nSelect and explain. \nA. Anterolateral-inferior, B. Anterolateral-superior, C. Posteromedial-inferior, D. Posteromedial-superior', 'role': 'user'}, {'content': 'Answer: A \nExplanation: 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.', 'role': 'assistant'}]