The bones of the skull
protect the brain and
guard the entrances to
the digestive and
respiratory systems.
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
Frontal bone
Zygomatic
bone
maxilla
vomer
steven lee
M.S. Pathology mandible
FTCC
Frontal bone
Supraorbital Glabella
Zygomatic Foramen (frontal bone)
Process (frontal bone)
(frontal bone)
Supraorbital
Infraorbital foramen Margin
(maxillary bone) (frontal bone)
Middle nasal concha
(ethmoid bone)
maxilla Inferior nasal concha
Perpendicular plate
(ethmoid bone)
Alveoli processes
vomer (maxillary bone)
Alveoli processes
steven lee (mandible)
M.S. Pathology mandible
FTCC
Frontal eminence
Superciliary arch
(frontal bone)
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
Perpendicular plate (ethmoid bone)
Infraorbital foramen
(maxillary bone)
steven lee vomer
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
Optic foramen or canal (sphenoid bone)
steven lee
M.S. Pathology
FTCC
When the supraorbital foramen is not completely
enclosed by bone, there is a supraorbital notch, rather
than a foramen, on the orbital rim, as is the case for
this specimen.
steven lee
M.S. Pathology
FTCC
Optic canals permit passage of the
optic nerves from the eyes to the brain.
steven lee
M.S. Pathology
FTCC
The inferior orbital fissure
permits passage of cranial
nerves and blood vessels.
steven lee
M.S. Pathology
FTCC
The superior orbital fissure
permits passage of cranial
nerves and blood vessels to the orbit
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
Frontal
bone
Parietal bone
Temporal bone
Occipital bone
Zygomatic
bone
maxilla
mandible
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC Zygomatic process
Coronal suture Frontal (frontal bone)
bone
Parietal bone
Frontal process
(zygomatic bone)
Zygomatic process
(Temporal bone)
Occipital bone
Condylar process
(mandible)
External auditory meatus Temporal process
(temporal bone) Zygomatic bone
maxilla
ramus
Coronoid process
(mandible)
External occipital
angle
protuberance Mastoid process mandible
(temporal bone) Styloid process
(temporal bone)
steven lee
M.S. Pathology
FTCC
Supra meatal triangle
Mandibular
condyle
Post glenoid process External auditory meatus
(temporal bone)
Tympanic part
mandible
Mastoid process
(temporal bone)
steven lee
M.S. Pathology Styloid process
FTCC (temporal bone)
steven lee
M.S. Pathology
FTCC
Frontal bone
Zygomatic process
(frontal bone)
Sphenoid bone
Frontal process
(zygomatic bone)
Ethmoid
Zygomatic arch bone
Zygomatic bone
Condylar process
(mandible)
Coronoid process
(mandible)
steven lee
M.S. Pathology maxilla
FTCC mandible
steven lee
M.S. Pathology
FTCC
Sagittal suture
Parietal bone
Lambdoidal
Parietal bone suture
Occipital bone Superior nuchal
line
External occipital
protuberance Inferior nuchal
Middle nuchal line line
Condyloid canal
Mastoid process
(temporal bone)
steven lee
M.S. Pathology Styloid process
FTCC (temporal bone)
steven lee
M.S. Pathology
FTCC
Frontal bone
Coronal suture
Parietal bone
Parietal bone
steven lee
M.S. Pathology
FTCC Occipital bone
steven lee
M.S. Pathology
FTCC
Lesser wing (sphenoid bone) Greater wing
(sphenoid bone)
Jugular foramen
Foramen magnum surrounds
Mastoid foramen
the connection between the
brain and spinal cord. Hypoglossal canals
steven lee
M.S. Pathology
FTCC
Location of foramen rotundum (sphenoid bone), although not shown on this model
Foramen lacerum
(sphenoid bone)
Lesser wing (sphenoid bone)
Foramen ovale
(sphenoid bone) Greater wing
(sphenoid bone)
Foramen spinosum
(sphenoid bone)
Foramen
magnum
Internal occipital crest
Internal occipital
protuberance
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
Cribiform plate
Crista galli
(ethmoid bone)
(ethmoid bone)
Lesser wing (sphenoid bone)
Sulcus chiasmatis
Tuberculum sellae
Sella turcica
Fossa hypophysis
(sphenoid bone)
steven lee Dorsum sellae
M.S. Pathology
FTCC
Crista galli
(ethmoid bone)
The falx cerebri, a membrane that stabilizes the
position of the brain, attaches to this ridge.
Lesser wing (sphenoid bone)
Greater wing
(sphenoid bone)
Sella turcica
(sphenoid bone)
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
Optic canal
(sphenoid bone)
The hypophyseal fossa,
the depression within the
sella turcica houses and
protects the pituitary gland.
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
Lesser wing
(sphenoid bone) Petrous portion
(temporal bone)
nasal
Alveoli processes
(maxillary bone) Internal acoustic canal
(temporal bone)
mandible ramus
body
steven lee
angle
M.S. Pathology
Mastoid process (temporal bone)
FTCC
steven lee
M.S. Pathology
FTCC
Internal auditory meatus
(temporal bone)
The internal auditory canal (meatus) carries
blood vessels and nerves to the
inner ear.
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
Palatine bones
Zygomatic arch
Palatine process
(maxilla)
Foramen
magnum
Occipital condyles
steven lee
M.S. Pathology External occipital
FTCC ptotuberance
Occipital condyles are the site of
articulation between the skull and
the 1st cervical vertebrae (atlas). Occipital condyles
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
mandible
Palatine process
(maxillary bone)
steven lee Palatine Palatine
M.S. Pathology bone bone
FTCC
steven lee
M.S. Pathology
FTCC
Pterygoid processes
medial medial
lateral
lateral
Pterygoid plates
(sphenoid bone)
vomer
steven lee
M.S. Pathology
FTCC Foramen magnum
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
maxilla
Maxillary alveoli processes
Mandibular notch
ramus
Oblique line
Mental
Mandibular alveoli processes foramen
body
mandible
Mental protuberance
steven lee
M.S. Pathology
FTCC
temporalis
buccinator
masseter
mentalis
steven lee
M.S. Pathology
FTCC
Maxillary bone
Alveoli processes
Alveoli processes
steven lee
M.S. Pathology mandible
FTCC
FETAL
steven lee
SKULL
M.S. Pathology
FTCC
Metopic suture
At birth, there are 2 frontal bones
that articulate along the metopic
suture. Although the suture
generally disappears by age 8 as
the bones fuse, the adult skull
steven lee commonly retains traces of the
M.S. Pathology
FTCC suture line.
steven lee
M.S. Pathology
FTCC
Frontal fontanel
(anterior)
Parietal bone
Frontal bone
Parietal bone
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
Parietal bone
Parietal bone
Occipital fontanel
(posterior)
Occipital bone
steven lee
M.S. Pathology
FTCC
steven lee
M.S. Pathology
FTCC
Parietal bone
Sphenoidal fontanel
(anterolateral)
Mastoidal fontanel
steven lee (posterolateral)
M.S. Pathology
FTCC