Card Set Information
Facial Bones Sinuses Final Test
Facial Bones and Sinuses, Final Test
what type of joint movement occurs with the tempormandibular joint?
An infection of the teeth may travel upward and involve which sinus cavities?
The mental foramen is a passage way for what?
Nerves and blood vessels
What are the foramina found within the orbits?
Superior Orbital Fissure
Inferior Orbital Fissure
Where are the Sphenoid Sinuses located?
Behind the Ethmoid Sinuses and Below the Sella Turcica
What is the posterior aspect of the orbit termed?
What is the rim of the orbit that corresponds to the outer circular portion of the cone of the eye called?
Which two (2) bones form the bony nasal septum?
Ethmoid and Vomer
Which facial bones form the majority of the hard palate?
How many facial bones make up the orbit?
How many Cranial bones make up the orbit?
How many bones total make up the orbit?
What is the largest immovable bone of the face?
Maxillae or Maxillary Bones
What is a fracture of the floor of the orbit caused by an object striking the eye straight on. (gives perception of two images?
Blow Out fracture
What is a fracture caused by a blow to the cheek, resulting in fracture of the zygoma in three different places? Results in a fre floating Zygomatic Bone?
Tripod Fracture-Orbital and Maxillary Processes and the arch
What describes several bilateral horizontal fractures of the maxillae that may result in an unstable detached fragment?
Le Fort Fracture
What is fracture to one side of a structure that is caused by an impact on the opposite side?
Where are the Petrous Ridges when performing a PA Caldwell Facial Projection?
In the Lower 1/3 of the orbits
What holds the teeth?
Alveolar Processes of each Maxilla
What is a line located between the outer canthus and the EAM?
What line is formed by the infraorbital margin and the EAM?
What line is formed by the acanthion and the EAM?
What line is formed by the Mentomeatal Line and the EAM?
What forms the line between the lips and the EAM?
What line is formed by connecting the glabella to the alveolar process of the maxilla?
Where is the CR for a lateral facial bone?
At the Zygoma and Midway between the EAM and Outer Canthus
How do you position for a Parietocanthial Projection(Waters) Facial Bone?
MML-Perpendicular to IR
How do you center for a PA Axial(Caldwell Method) Facail Bones?
OML-Perpendicular to IR
CR-Exit at Nasion
Where are the petrous ridges for a Parietoacanthial (Waters) Method for Facial Bones
BELOW the Maxillary Sinuses
Which posistion best shows BOTH Zygomatic Arches?
How should sinuses be performed?
Erect with horizontal to beam to show air-fluid levels
Which projection best shows the optic foramen?
Parieto-orbital oblique (rhese method)
What projection best shows the floor of the orbits (blowout fracture)?
Modified Waters Projection
Which projection best views the single zygomatic arch?
Oblique Inferiorsuperior projection (tangential)
Which projection best shows the image of the nasal bones and nasal septum?
Which position best shows the inferior orbital rim, maxillae, nasal septum, nasal spine, zygomatic bone and arches?
How much of a difference is the degree between OML and IOML?
Which soft landmark is found at the base of the anterior nasal spine?
Why are nasal bones done on both sides?