The upper jawbones are called the:

The upper jawbones are called the:

• A. Maxillae
• B. Mandible
• C. Zygomatic bones
• D. Palatine bones

Answer: (A)

The upper jawbones are the maxillae. These paired bones form the upper jaw, hold the upper teeth, and contribute to the floor of the eye sockets and the sides of the nasal cavity, while also forming most of the hard palate that roofs the mouth. They meet at the midline along the maxillary suture. In contrast, the mandible is the lower jaw, the zygomatic bones are the cheekbones, and the palatine bones form the posterior part of the hard palate and part of the nasal floor. So the bone that defines the upper jaw is the maxilla (plural: maxillae).

The upper jawbones are the maxillae. These paired bones form the upper jaw, hold the upper teeth, and contribute to the floor of the eye sockets and the sides of the nasal cavity, while also forming most of the hard palate that roofs the mouth. They meet at the midline along the maxillary suture. In contrast, the mandible is the lower jaw, the zygomatic bones are the cheekbones, and the palatine bones form the posterior part of the hard palate and part of the nasal floor. So the bone that defines the upper jaw is the maxilla (plural: maxillae).