Procedures Skull Flashcards
How many bones is the skull made up of
22
8 Cranial 14 facial
Class
MT
Sutures
synarthroidal
none
What are the 2 tables of bone
Inner: spongy
Outer: compact
What does supra orbital groove correspond to
floor of cranium
Other name for inion
External occipital protuberance
What does TEA correspond to
Level of petrous ridges
Degree of difference between OML and IOML
7-8
Other name for OML
Radiographic baseline
What are 4 major sutures
Lambdoidal
Sagittal
Coronal Squamousal
When are fontanels found
at birth
When are they replaced by bone
18 mo
What is largest fontanel
Anterior
Another name for anterior fontanel
Point of Bregma
Another name for posterior fontanel
Point of Lambdoidal
Average skull
Class and angle
mesocephalic
45-47 degrees
Narrow/elongated skull class and angle
dolichocephalic
40 degrees
Short wide skull class and angle
bradycephalic
54 degrees
Avrevation for structure of cranium
STOPEF
4 Bones of skull cap
Frontal
occipital
2 parietal
4 bones of cranium
spehnoid
ehtmoid
rt temp
lt temp
2 Main parts of frontal bone articulations
coronal suture
Where does temporal bone articulate
squamosal bone
What is lambda
Sagittal suture meets lambdoidal
where does temporal articulate
Squamosal bone
What are parietal eminences
Prominent bulges
4 Groups of sinuses
Maxillary 2
Ethmoid many
Frontal 2
Sphenoid 1/2
What is largest sinus
Maxillary
When are maxillary sinus developed/aerated
at birth
What is 2nd largest sinus
Frontals
When do Ethmoid sinuses develop
During puberty
What patho is demoed when there is an air/fluid level in sphenoid sinus
Basilar skull fracture
