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: Anatomy
Which of the following does not take part in formation of roof of the Orbit? 
Select and explain. 
A. Orbital Plate, B. Frontal Bone, C. Greater wing of sphenoid, D. Lesser wing of Sphenoid
C: Greater wing of sphenoid
Answer: C: Greater wing of sphenoid 
Explanation: WALLS



Floor (inferior wall)
Orbital surface of maxillary, zygomatic, palatine bone.


Medial wall
Frontal process of maxilla, lacrimal bone, orbital plate of ethmoid.


Lateral wall
Orbital process of zygomatic and the orbital plate of greater wing of sphenoid.


Roof (superior wall)
Orbital plate, frontal bone and the lesser wing of sphenoid.