Facial Bones & The Orbits Flashcards
Describe the zygomatic bone?
forms the lateral part of the cheekbones
list all the facial bones?
nasal (2)
lacrimal (2)
inferior conchae (2)
vomer
palatine (2)
zygomatic (2)
maxillae (2)
mandible
What are the foramina of the zygomatic bones?
zygomatico- orbital foramen
zygomatico- facial foramen
zygomatico - temporal foramen
Describe the palatine bones?
L- shaped bones extending from the hard palate to the orbit and contribute to the posterior floor of each orbit
What do palatine bones articulate with?
The vertical portion articulates with the pterygoid process for the sphenoid bone forming the pterygo-palatine fossa
What do the lacrimal bones form/contribute ?
forms the anterior aspect of the medial wall of the orbit and contributes to the nasolacrimal canal
What are the bones of the nasal cavity and what do they form?
- vomer - forms the posterior part of the nasal septum
- conchae
What does the vomer bone form?
the posterior part of the nasal septum
the nasolacrimal canal passes from the _____ to the _____?
orbit to the inferior meatus
Each orbit is composed of ____ bones?
7 bones
what does the maxillae form?
the upper jaw, hard palate, lateral walls of the nasal cavity and the floor of both orbits & contains the maxillary sinus
the lateral rectus is _____ then the medial rectus
longer
What are the seven bones each orbit is composed of?
- superior frontal
- sphenoid
- ethmoid
- lacrimal
- zygomatic
- maxillary
- palatine
The superior wall (orbit) is made up mostly of the?
frontal bone
The medial wall (orbit) is made up mostly of the?
ethmoid bone
