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
Antrum of Highmore is another name for: 
Select and explain. 
A. Maxillary, B. Ethmoid, C. Sphenoid, D. Frontal
A: Maxillary
Answer: A: Maxillary 
Explanation: Maxillary sinus is also called as antrum of highmore and is the first to develop in human fetus.It is the largest paranasal sinus (15 ml capacity in adults).