Cranium Flashcards
Which Petrous pyramid is visualized above the SOML
AP axial projection
Small irregular bones and found in the lambdoidal suture
Sutural or wormian
In infants, Bergma and lambda are membrane covered opening or soft spots
Anterior and posterior frontanels
The frontanels does not completely close until
18mo
Largest frontanels 11/2 inches
Anterior
Two lateral frontanels close after birth
Sphenoid and mastoid
Cranial sutures don’t ossify until
Mid - late 20s
Points at the junction of the frontal, parietal, temporal, and greater wings sphenoid
Pterions
Anterior end of Sagittal suture
Bregma
Sutures are classified as______ joints and ______ joints
Fibrous and synarthrodial types joints
Which view shows the sella turcica
True lateral view
Sphenoid articulates with how many cranial and facial bones
7 cranial and 5 facial
Small upper horizontal portion of bone , contains
Cribriform
Means rooster comb
Crista Gali
Contains the ethmoid air cell and help to form the medial wall of orbits and lateral wall of nasal cavity
- thin scroll shape
Lateral labyrinth
Sella turcica protects
Pituitary glands or hypophysis cerebri
Shallow depression that begins on the posterior inferior aspect of the dorsum sellae of the sphenoid bone
Cilvus
Thin and most vulnerable portion of the entire skull
Squamous portion
Houses the organs of equilibrium
Petrous pyramid
Widest portion of the skull
Parietal tubercles
TEA ( superior external attachment) important landmark that corresponds to
Petrous ridge
Three orbit landmarks
- SOM
- IOM
3 mid lateral orbital margin
Corresponds to the highest level of facial bone mass
SOG ( supraorbital groove
Ridge arch of bone that extends across the forehead directly above each eye
.-Level of flood of the anterior fossa
Superciliary ridge
