Facial Skeleton Maxillae (2) Form the upper jaw

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Presentation transcript:

Facial Skeleton Maxillae (2) Form the upper jaw Portions comprise the anterior (???) roof of the mouth (“hard palate”), the floors of the orbits (???), and the sides and floor of the nasal cavity. Contain sockets of the upper teeth “Maxillary sinuses” Inside the maxillae, lateral (???) to nasal cavity The largest of the sinuses

Facial Bones, continued…. Maxillae, continued…. “Palatine processes” fuse midline (???) to form anterior section of hard palate Teeth are found in cavities in the “alveolar arch” (aka “dental arch”) formed by the “alveolar processes” projecting downward from the inferior (???) border of the maxillae.

Facial Bones, continued…. Palatine bones Behind the maxillae Horizontal portions form posterior (???) section of hard palate and floor of nasal cavity Perpendicular portions help form lateral (???) walls of nasal cavity

Facial Bones, continued….. Zygomatic bones (“???”) Also help form lateral walls and floors of the orbits Each bone has a “temporal process” that connects to the zygomatic process (forming the zygomatic arch). Lacrimal bones Thin, scale-like structure in medial wall (??) of each orbit between ethmoid bone and maxilla

Facial Bones, continued….. Nasal bones Long, thin, and nearly rectangular Lie side by side and fused at midline to form bridge of nose Vomer bone Thin and flat Along midline in nasal cavity Joins perpendicular plate of ethmoid bone posteriorly (???) to form nasal septum

Facial Bones, continued….. Inferior nasal conchae Fragile, scroll-shaped bones attached to lateral walls (???) of nasal cavity Support mucous membranes in nasal cavity Mandible (“???”) Upward projection at ends: Posterior “mandibular condyle” articulates with mandibular fossae on _______ bone Anterior “coronoid process” provides attachments for muscles for chewing “Alveolar arch” – curved, superior (???) border that contains sockets for lower teeth