quiz 3 - facial Flashcards
What is the smallest facial bone?
lacrimal
Where do the tear ducts pass?
lacrimal bone area
What joins the facial and nasal bone
Naison
List facial bones
nasal, lacrimal, zygomatic, maxillary, mandible, palatine, inferior nasal conchae, vomer
what does the nasal bone form
nose bridge
Nasal bone articulations
Opposite nasal bone, maxillae, frontal bone (naison), ethmoid plate
what facial bone articulates with all except mandible
maxillary
What skull bones do the maxillary articulate with
frontal and ethmoid
What does the maxillary bone form?
3/4 of the hard palate (formed in palatine process), part of orbit floor, part of the lateral walls and floor of nasal cavity
Hard palate purpose
helps chew, separates nasal cavity from oral cavity
Which facial bone forms cheek bones
Zygoma
Maxillary processes
Frontal process of maxillae, Zygomatic process of maxillae, Alveolar process of maxillae, Palatine process of maxillae
If palatine process is not fused together, what is needed, why?
surgery - because sucking is important as an infant
What forms the other 1/4 of the palate?
palatine bone
articulations of zygomatic bone
temporal, maxillary, sphenoid, frontal
What movement takes TMJ out of mandibular notch
Excursion
List paranasal sinuses
Frontal sinuses, sphenoid sinuses, ethmoid sinuses, maxillary sinuses
Largest, strongest, and only movable facial bone?
Mandible
Tip of chin is called?
Mental point
Foramen located in the mandible?
mental foramen
What forms the TM joint?
Condyle of mandible articulates with mandibular fossa (notch) of the zygomatic process of temporal bone
Mandibular fossa (notch) location?
Between mandibular condyle and coronoid
When imaging mandible laterally, how superior?
Past EAM to get all of mandible
What bones form the circumference of the orbit?
Frontal, zygomatic, maxillary
What bones form the roof of the orbit?
Orbital plates of the frontal bones mainly, and lesser wing of sphenoid
What bones form the floor of the orbit?
Maxillary*, zygomatic, palatine
Blow out fracture of the orbit
Hit - fracture of maxilla - bleeding / fluid into maxillary sinuses
Medial wall of orbit bones
maxillary, ethmoid, lacriminal