Head Work Flashcards
The two lines that are important for a lateral:
MSP parallel
IPL perpendicular
How many cranial bones are there?
8
How many facial bones are there?
14
Name the cranial bones:
the ethmoid bone, the sphenoid bone, the frontal bone, the occipital bone, two parietal bones, and two temporal bones
What are the 14 facial bones:
2 nasal bones, 2 palatine bones, 2 lacrymal bones, 2 zygomatic bones, 2 maxilla bones, 2 inferior nasal conchae, 1 vomer bone and mandible.
Orange
Sphenoid
Yellow
Frontal
Yellow
Frontal
Green
Parietal
Purple
Temporal
Blue
Occipital bone
Dark Green
Ethmoid
Dark Green
Ethmoid
Yellow
Frontal bone
Orange
Sphenoid (left greater wing)
Orange
Sphenoid (left greater wing)
Purple
Right temporal
Green
Right parietal
Dark blue
Ethmoid
Dark blue
Ethmoid
Orange
Sphenoid
Pointing to:
Optic Foramen
What blows out in a blow out fracture?
Floor of the orbit
Three bones of the inner ear?
Mallous, incies, stapies
Controls equilibrium
Semi circular canals
Middle Ear contains:
Mallous incies and stapies
Inner ear contains
Cochlea and semi circular canals
Blue line
Infraorbital Meatle line
Blue line
Infraorbital Meatle line
Line 1
Glabellomeatle line
Extends from the glabella to the EAM
Line 1
Glabellomeatle line
Extends from the glabella to the EAM
Line 2
Orbitomeatle line
Outer canthus to EAM
Line 2
Orbitomeatle line
Outer canthus to EAM
The degrees between the IOML and OML is
7 degrees
The difference between the GLM and OML is:
8 degrees
The total degrees between the GLM and IOML is:
15 degrees
What position is this?
AP Axial (Townes)
If you have a sore throat what bacterial
When your equilibrium is off:
Semi Circular Canals Inflamed
Lateral Facial Bones and Sinuses CR
Halfway between the outer canthus and the EAM
For lateral skull CR:
5 cm above the EAM
For nasal bones:
1/2 inch distal to nasion
Identify the image:
PA Skull
(Petrous Ridges Fill Orbit)
The CR for this image:
Perpendicular
PA Skull shows what sinuses:
Frontal Sinuses
Anterior Ethmoid Sinuses
What position is this?
PA Axial (Caldwell) Skull
15 degree caudad
What position is this?
SMV
Submentovertical
MSP:
What positioning line?
IOML parallel to the IR
MSP perpendicular to IR
Where is the CR directed?
Directed perpendicular to the IOML line
What sinuses are seen?
Sphenoid
Ethmoid
Mandible in full profile
What position is this?
Pariatoacanthial (Waters Method)
What does the this position best demonstrate?
Maxillary Sinuses
OML 37 degrees
Petrous Ridges below the floor of the maxillary sinuses
If you wanted to see the orbits better in this image
Bring the chin down
If a patient is having an MRI, what position do you do?
Modified Pariatoacanthial Projection
What is this?
Modified Waters (AcanthialParietal Projection)
Where are the petrous ridges?
In the lower 1/3 of the maxillary sinuses
OML:
55 degrees
