This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2017, Subject name: Anatomy
[{'content': 'Uncinate process of ethmoid bone is attached anteriorly to the bone? \nSelect and explain. \nA. Sphenoid, B. Ethmoid, C. Lacrimal, D. Frontal', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ethmoid bone is a pneumatic bone & contains ethmoid air cells, superior & middle turbinates. Ethmoid bone forms medial wall of orbit. Orbit wall Bone Medial Ethmoid bone Roof Frontal bone Lateral Zygomatic bone Floor Maxilla Uncinate process is a pa of ethmoid bone, coming from middle turbinate. Attachments: Anterior - Lacrimal bone & frontonasal process of maxilla Posterior - Free but related to perpendicular plate of palatine bone. Inferiorly - Inferior turbinate.', 'role': 'assistant'}]