What are Facial bones and Hyoid bone?

Facial Bones

Maxillae The two maxillae form the upper jaw, and each has an alveolar process in which the teeth are located, Other processes, called the palatine processes, form the an­terior portion of the hard palate, the roof of the mouth. The maxillae also contribute to the floors of the orbits and to the sides and floor of the nasal cavity.

Palatine Bones The two palatine bones make up the posterior portion of the hard palate and the floor of the nasal cavity. A cleft palate results when the palatine bones have failed to fuse.

Zygomatic Bones The two zygomatic bones form the sides of the orbits and the cheekbones. Each bone has a temporal process that joins the zygomatic process of a temporal bone.

Lacrimal Bones The two smalL thin lacrimal bones are located on the medial walls of the orbits. A small groove between the orbit and the nasal cavity serves as a pathway for a tube that carries tears from the eyes to the nose.

Nasal Bones The two nasal bones are small, rectangular bones that form the bridge of the nose. The ventral portion of the nose is cartilage.

Vomer Bone The vomer bone joins with the perpendicu­lar plate of the ethmoid bone to form the nasal septum.

Inferior Nasal Conchae The two inferior nasal conchae are thin, curved bones that project into the nasal cavities and are attached to their lateral walls. Like the other conchae they support the mucous membranes that line the nasal cavity.

Mandible The mandible, or lower jaw, is the only mov­able portion of the skull. Its horseshoe-shaped body forms the chin. It also contains two upright projections called rami. Each ramus has a mandibular condyle that articu­lates with a temporal bone and a coronoid process, which serves as a place of attachment for the muscles used for chewing. The lower teeth are located on the alveolar arch of the mandible. 

Hyoid Bone

The U-shaped hyoid bone is located superior to the larynx (voice box) in the neck. It is the only bone in the body that does not articulate with another bone. Instead, it is sus­pended from the styloid processes of the temporal bones by the stylohyoid muscles and ligaments. It anchors the tongue and serves as the site for the attachment of several muscles associated with swallowing.