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: Ophthalmology
Volume of orbit is 
Select and explain. 
A. 19 ml, B. 29 ml, C. 39 ml, D. 49 ml
B: 29 ml
Answer: B: 29 ml 
Explanation: Answer- B. 29 mlVolume of each orbit is 29 ml.Orbit is made up of 7 bones: frontal, ethmoid, lacrimal, palatine, maxilla, zygomatic and sphenoid