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': 'Quadrilateral cailage is attached to all of the following structures, EXCEPT: \nSelect and explain. \nA. Ethmoid, B. Vomer, C. Sphenoid, D. Maxilla', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The nasal septum has bony and cailaginous components. The septal cailage is called quadrilateral cailage, inferiorly it aiculates with maxillary septum. Posteriorly, cailaginous septum aiculates inferoposterior with the vomer, superoposterior with perpendicular plate of the ethmoid.', 'role': 'assistant'}]