Skull/Cranial Fossa - Exam 4 Flashcards
(19 cards)
parietal bone contains the groove for…
meningeal artery
occipital bone contains…
external occipital protuberance, nuchal lines
external acoustic meatus (temporal bone)
auditory canal
mastoid and styloid processes (temporal bone)
muscle attachment sites
zygomatic process (temporal bone)
articulates with zygomatic bone to make zygomatic arch
pterion
junction of sphenoid (greater wing), front, parietal, and temporal
weak point overlaying middle meningeal artery
ethmoid contains…
crista galli and cribriform plate
what lays over the cribriform plate?
olfactory bulbs
sphenoid bone (portions)
lesser wing
greater wing
sella turcica
sella turcica holds?
pituitary gland
coronal suture
between frontal and parietal
sagittal suture
between parietal bones
bregma
where coronal and sagittal sutures meet (surgical landmark)
lambdoid suture
between occipital and parietal
squamous suture
between temporal and parietal/sphenoid
zygomatic arch
zygomatic bone combines with squamous temporal to form zygomatic arch
articulation for mandible, muscle origin site
anterior cranial fossa contents
frontal, sphenoid (lesser wing), ethmoid (crista galli and cribriform)
middle cranial fossa contents
sphenoid bone (greater wing and sella turcica), temporal bone (squamous and petrous portions)
contains hypophysial fossa (sella turchina) - depression that holds pituitary gland
posterior cranial fossa contents
temporal bone (petrous portion), occipital bone
contains foramen magnum and jugular forament
