Which of the following sinuses is the largest in the human skull?

The maxillary sinus is considered the largest of the paranasal sinuses in the human skull. It is situated within the maxilla, which is the upper jaw bone, and extends toward the cheeks. This sinus is significant not only because of its size but also due to its anatomical relationships with adjacent structures. The maxillary sinus is relatively large and has a substantial volume compared to the other sinuses, making it easier for medical professionals to assess when diagnosing conditions related to sinus health.

The frontal sinus, while present and important for various functions, is typically smaller than the maxillary sinus. Similarly, the ethmoid sinus consists of numerous small air cells and is not characterized by a single large cavity, making it less substantial in volume than the maxillary. The sphenoidal sinus, located deeper within the skull, is also smaller and less prominent compared to the maxillary sinus. Thus, the distinction in size and anatomical positioning makes the maxillary sinus the largest sinus in the human skull.