Term
|
Definition
mesocephalic
47 degree angle |
|
|
Term
|
Definition
brachycephalic
54 degree angle |
|
|
Term
|
Definition
dolichocephalic
40 degree angle |
|
|
Term
| How many bones in cranium? |
|
Definition
22
8 - cranial
14 - facial |
|
|
Term
cranial bones
2 divisions |
|
Definition
|
|
Term
|
Definition
inner layer of spongy bone separating 2 outer plates
of compact tissue
composition of calvarium bones |
|
|
Term
|
Definition
frontal
occipital
R & L parietal |
|
|
Term
| bones of the cranial floor |
|
Definition
ethmoid
sphenoid
R & L temporal |
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|
Term
|
Definition
| fibrous joints that connect bones of the skull |
|
|
Term
|
Definition
| between frontal & parietal bones |
|
|
Term
|
Definition
| on top of head between 2 parietals |
|
|
Term
|
Definition
| between temporal bone & parietal bones |
|
|
Term
|
Definition
| between occipital & parietal bones |
|
|
Term
|
Definition
| junction of coronal & sagittal sutures |
|
|
Term
|
Definition
| junction of sagittal & lambdoidal sutures |
|
|
Term
|
Definition
| areas of incomplete ossification in infant skull |
|
|
Term
radiographic positioning guidelines
are based on the __________ skull |
|
Definition
|
|
Term
| sphenoid bone has a deep depression called the ____________ that houses the pituitary gland |
|
Definition
|
|
Term
|
Definition
| study landmarks and positioning lines |
|
|
Term
| petrous portion (pyramid) |
|
Definition
| thickest, densest part of cranium |
|
|
Term
|
Definition
MSP parallel to IR
IPL perpendicular to IR
IOML parallel to transverse axis of IR
CR perpendicular to IR entering 2 inches superior to EAM |
|
|
Term
lateral skull
evaluation criteria |
|
Definition
entire cranium w/o rotation or tilt
sella turcica in profile
no overlap of c-spine by mandible |
|
|
Term
|
Definition
MSP centered
forehead and nose resting on bucky
OML perpendicular to IR
IR centered to nasion
CR perpendicular exiting nasion
petrous pyramids fill orbits |
|
|
Term
| PA Axial Skull - Caldwell |
|
Definition
MSP centered
forehead and nose resting on bucky
OML perpendicular to IR
IR centered to nasion
CR 15 degrees caudad exiting nasion
petrous pyramids fill lower 1/3 of orbit |
|
|
Term
|
Definition
same basic positioning as PA
CR perpendicular entering nasion |
|
|
Term
|
Definition
for when you can't do PA Caldwell
CR 15 degrees cephalad entering nasion |
|
|
Term
|
Definition
MSP centered
OML perpendicular (IDEAL) CR 30 caudad
IOML perpendicular (okay) CR 37 caudad
CR enters on MSP about at the hairline
Dorsum sellae & posterior clinoid processes visible withing foramen magnum |
|
|
Term
|
Definition
If can't do a Townes
CR 25 degrees cephalad to OML |
|
|
Term
|
Definition
IOML parallel to IR
MSP centered
CR perpendicular to IOML entering between angles of mandible
*superimposition of mental protuberance over anterior frontal bone indicates full next extension |
|
|
Term
| Parietoorbital Oblique (Rhese) Orbits |
|
Definition
rest zygoma, nose, and chin on bucky
AML perpendicular to IR
MSP forms 53 degree angle w/ IR
CR perpendicular entering 1 inch superior and posterior to upside TEA
*optic canal & foramen demonstrated in interior, lateral quadrant of orbit |
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