How many facial bones are there?
14
Of the 14 facial bones, how many are paired, and how many are single bones?
12 paired
2 single
-Paired bones that make up most of the face
-form the upper jaw, parts of the eye, nasal cavity and anterior 2/3 of the hard palate
Maxilla
T/F
Each maxilla bond has a body and 4 processes
True
What are the 4 processes of the maxilla bones?
Zygomatic process
Frontal process
Palatine process
Alveolar process
-pyramidal in shape and holds the maxillary sinuses
Body of maxilla
Body of maxilla
-part faces anterior and laterally, infraorbital foramen for vessels and infraorbital nerves
-anterior nasal spine (pointed process)
Anterior surface of body of maxilla
Body of maxilla
-forms most of the floor of the orbit, infraorbital margin, articulates with lacrimal bone and orbital plates of ethmoid bone
Superior surface of body of maxilla
Body of maxilla
-forms a large part of the lateral wall of the nasal cavity, has lacrimal groove for nasolacrimal duct
Medial (nasal) surface of maxilla
Duct drains tears from eyes into nose
Nasolacrimal duct
Roughened area of the lateral side that articulates with the zygomatic bone
Zygomatic process
-process that projects up and back
-articulates with the nasal bone anteriorly, the lacrimal bone posteriorly and the nasal part (nasion) of the frontal bone superiorly
Frontal process of maxilla
-part that projects horizontally on the medial surface to join with the other palatine process and forms the anterior two thirds of the hard palate, midline nasal crest (anterior - called nasal spine)
Palatine process
T/F
The superior part of the palatine process is the nasal crest, turns into nasal spine at most anterior part
True
Most inferior part of maxilla, forms articulation with upper teeth
Alveolar process