Facial Skeleton

1
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

2
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.

3
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

4
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

5
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

6
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