This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
[{'content': 'Major contribution in the formation of nasal septum is by all except ? \nSelect and explain. \nA. Septal cailage, B. Vomer, C. Ethmoid, D. Nasal bone', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Nasal bone The medial wall, or nasal septum, is formed (from anteiror to posterior) by : (1) the septal cailage (destroyed in a dried skull) (2) the perpendicular plate of the ethmoid bone, and (3) the vomer . It is usually deted to one side. The vomer contributes to the inferior poion of the nasal septum; the perpendicular plate of the ethmoid bone contributes to the superior poion.", 'role': 'assistant'}]