Which sinuses are located within the frontal bone?

The frontal sinuses are specifically located within the frontal bone, which forms the forehead and the upper part of the eye sockets. These paired cavities are situated just above the eyebrows and help with functions such as mucus drainage, air humidification, and resonance of the voice. The frontal sinuses are connected to the nasal cavity and play a role in reducing the weight of the skull.

The other sinus groups mentioned, such as the maxillary, sphenoid, and ethmoid sinuses, are positioned in different areas of the skull and do not reside within the frontal bone. Maxillary sinuses are found within the maxilla (cheekbone), sphenoid sinuses are located within the sphenoid bone at the base of the skull, and ethmoid sinuses are situated within the ethmoid bone, which is between the nose and the eyes. Each sinus has its unique anatomical location and significance, but only the frontal sinuses are directly associated with the frontal bone.