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': 'Which of the following bones do not contribute the nasal septum - \nSelect and explain. \nA. Sphenoid, B. Lacrimal, C. Palatine, D. Ethmoid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Septum proper:- This forms the major portion of the nasal septum and consists of the osteocartilaginous framework which is covered by mucous membrane. Its constituents are :-\n\ni)\xa0\xa0 Osseous part\n\nThe vomer\nRostrum and crest of sphenoid\nNasal crest of maxillary bone\nPerpendicular plate of ethmoid\nNasal crest of nasal bone\nNasal spine of frontal bone\nNasal crest of palatine bone\n\nii)\xa0 Cartilaginous part\n\nSeptal (Quadrilateral) cartilage', 'role': 'assistant'}]