Download Facial Skeleton

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