by bonnyb


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Front Back
frontal bone
(1)
forehead
supraorbital foramen
(2)
frontal bone marking
eyebrow area notch
edge of orbital cavity
Parietal bones (2)
(2)
posterior to frontal bone
top of head Much of the lateral and superior cranium
sagittal suture
(1)
parietal bone marking
runs sagittally
connects the 2 parietal bones
coronal suture
(1)
parietal bone marking
runs coronally/frontally
connects frontal & parietal bones
Temporal bones
(2)
near ear Site of styloid and mastoid processes
Squamosal sutures
(2)
temporal bone marking
connects temporal and parietal bones
external auditory/acoustic meatus
(2)
temporal bone marking
canal leading to eardrum
styloid process
(2)
temporal bone marking
means "stake" - thin, pointy
inferior to external auditory meatus
zygomatic process
(2)
temporal bone marking
connects to cheek bone
mastoid process
(3)
temporal bone marking
posterior & inferior to external acoustic meatus
triangular-shaped
mandibular fossa
(2)
temporal bone marking
indention underneath zygomatic process
stylomastoid foramen
(2)
temporal bone marking
tiny hole between styloid and mastoid processes
jugular foramen
(2)
temporal bone marking
medial to the stylomastoid foramen
carotid canal
(2)
temporal bone marking
slightly anterior to the jugular foramen
Occipital bone
(1)
most posterior part of cranium Location of condyles that articulate with the atlas Site of foramen magnum
lambdoid suture
(1)
occipital bone marking
separates occipital from parietal bone
looks like Greek letter lambda Λ
foramen magnum
(1)
occipital bone marking
large opening at base of cranium for spinal cord
occiptal condyle
(2)
occipital bone marking
lima bean-shaped
anteriolateral to foramen magnum
external occipital protuberance
(1)
occipital bone marking
ridge at base of skull further away from the foramen magnum
Sphenoid bone
(1)
has 2 wings
side view = temple area
inferior view = bat-shaped
in between teeth and foramen magnum Forms part of cranial floor Site of stella turcica
greater sphenoid wings
(2)
sphenoid bone marking
majority of what you see in the wing shape
lesser shenoid wings
(2)
sphenoid bone marking
viewable only when teeth are removed
sella turcica
(1)
sphenoid bone marking
midline of sphenoid
saddle-shaped
hypophyseal fossa
(1)
sphenoid bone marking
center of sella turcica
optic canal
(2)
sphenoid bone marking
base of lesser wings where optic nerve enters the orbits
foramen rotundum
(2)
sphenoid bone marking
on greater wing
anterior to foramen ovale
R in ROS
foramen ovale
(2)
sphenoid bone marking
on greater wing
posterior to foramen rotundum
anterior to foramen spinosum
O in ROS
foramen spinosum
(2)
sphenoid bone marking
on greater wing
posterior to foramen ovale
anterior to temporal bone
S in ROS
superior orbital fissures
(2)
sphenoid bone marking
superior part of boomerang-shaped opening
lateral to the optic canal
inferior orbital fissures
(2)
sphenoid bone marking
inferior part of boomerang-shaped opening
lateral to the optic canal
Ethmoid bone
(1)
midline anterior
roof of nasal cavity Superior and middle nasal conchae form its projections Site of cribriform plate Bears an upward protrusion, the cocks comb or crista galli
crista galli
(1)
ethmoid bone marking
vertical projection
midline of ethmoid bone
superior to perpendicular plate
cribiform plates
(2)
ethmoid bone marking
plates lateral to crista galli
superior nasal conchae
(2)
ethmoid bone marking
plates extending medially from lateral masses
superior to middle nasal conchae
middle nasal conchae
(2)
ethmoid bone marking
lateral to perpendicular plate
plates extending medially from lateral masses
superior to inferior nasal conchae
inferior to superior nasal conchae
perpendicular plate
(1)
ethmoid bone marking
forms the superior part of the nasal septum
anterior to crista galli
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