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
Uncinate process of ethmoid bone is attached anteriorly to the bone? 
Select and explain. 
A. Sphenoid, B. Ethmoid, C. Lacrimal, D. Frontal
C: Lacrimal
Answer: C: Lacrimal 
Explanation: 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.