The bone that matches these characteristics is the maxilla.
The maxilla is one of the facial bones, and it plays a significant role in the structure of the face and the orbits. It indeed forms a small portion of the inferior aspect of the orbit. Additionally, it contains the maxillary sinus, which is one of the largest sinus cavities located just below the orbit. This sinus helps in lightening the weight of the skull and contributes to voice resonance.
Understanding the maxilla’s location and its related characteristics can help in various fields such as dentistry and maxillofacial surgery, where knowledge of bone structure is crucial.