What bone(s) form(s) the upper jaw?Multiple choice question.ethmoidmaxillaevomermandible

The bones that form the upper jaw include:

1. Maxilla: This is the primary bone that forms the upper jaw and holds the upper teeth. It also contributes to the structure of the face and forms part of the floor of the orbits (eye sockets).

2. Palatine Bone: Although the palatine bones are not directly identified in your options, they help form the hard palate of the mouth which also contributes to the upper jaw.

3. Other Considerations: The other bones listed (ethmoid, vomer, mandible) have different roles. The ethmoid is located deeper in the skull and contributes to the nasal cavity; the vomer forms part of the nasal septum; the mandible is the lower jaw bone.

Final Answer

The correct answer is maxilla.