Antrum of Highmore is?: (A) Maxillary, (B) Ethmoid, (C) Sphenoid, (D) Frontal
Answer is A. The antrum of Highmore is maxillary sinus. It is the largest of paranasal sinuses and occupies the body of the maxilla. (Reference: Textbook of PL Dhingra and Shruti Dhingra; 7th edition, pg no. 209)