ANATOMY
POSITIONING
LANDMARKS
ANATOMY X2
FUNCTION
100
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Parietal
100
Center Point for Lateral Skull
2 inches (5 cm) superior to EAM
...or halfway between the glabella and inion
100
CR 1½ inches (4 cm) inferior to
mandibular symphysis is for what x-ray view?
SMV
100
All four sutures
Coronal, Squamosal, Lambdoidal & Sagittal
100
Equalizes pressure
Eustachian tube
200
The two sections for Cranial bones
Calvaria & Floor
200
Center Point for AP Axial (Towne Method)
2½ inches (6.5 cm) above glabella
200
Lift chin and hyperextend neck if possible until IOML is parallel to IR is for what Skull x-ray view
SMV
200
The posterior part of the sella turcica
Dorsum sellae
200
auditory ossicle that picks up sound vibrations from the tympanic membrane
Malleus (hammer)
300
Sphenoid
300
For a PA and AP Skull x-ray what is perpendicular to the plate
OML
300
External Landmark that corresponds with the level of the petrous ridge
Top of the Ear Attachment (TEA)
300
Three aspects of temporal bones
Squamous, Mastoid & Petrous
300
Opening in the temporal bone that serves as a passageway for nerves of hearing and equilibrium
Internal Acoustic Meatus (IAM)
400
A structure found in the middle of the sphenoid bone that surrounds the pituitary gland
sella turcica
400
If the tube angulation for a Towne Method is 37° what positioning line is perpendicular to the IR?
IOML
400
Junction Points
Asterion, Bregma, Lambda & Pterion
400
Inferior to the zygomatic process
and anterior to the EAM
temporomandibular fossa, into
which the mandible fits form the
TMJ
400
Thin plate of bone that separates the mastoid air cells from the brain
Tegmen tympani
500
The inferior portions of this anatomy:
lateral & medial pterygoid process, & pterygoid hamulus
500
For a PA without angulation where does the CR exit at?
Glabella
500
Line used in positioning to ensure that the skull is in true lateral position
Interpupillary line
500
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optic, rotudum, ovale, spinosum, magnum
500
contains small openings or foramina that olfactory
nerves pass through
cribriform plate