A & P The skull/cranium

lambdoid suture

joins the parietal bones to the occipital bone

coronal suture

joins the frontal bone to the parietal bones

sagittal suture

joins both parietal bones

squamous suture

joins temporal bone to parietal bone

suture

Inmoveable joints that connect cranial bones

frontal bone

"forehead"

parietal bones

2 of them on either side of your head

temporal bone

2 of them, near our ears

squamous region

flat part that joins temporal to parietal

zygomatic process

extends from squamous part towards zygomatic bone

zygomatic arch

bridge across side of skull, formed by zygomatic process and temporal process

mandibular fossa

Articulates with mandible, oval shaped fossa on interior side of zygomatic process

mastoid process

round projection on the temporal bone behind the ear

petrous region

houses auditory ossicles of the middle ear

malleus, incus, stapes

auditory ossicles

external acoustic meatus

external auditory canal

occipital bone

located at the back/ underneath of head

foramen magnum

large opening in occipital lobe where brainstem connects to spinal cord

occipital condyles

2 rounded projections on either side of foramen magnum, points of articulation between skull and first cervical vertebra

sphenoid bone

bone that joins all of the bones of the cranium together

sphenoid body

center of sphenoid

lesser wings

located superior to sphenoid body

greater wings

project laterally from the sphenoid body

ethmoid bone

between eyes, forms walls of the eye sockets

cribriform plates

part of ethmoid, located on either side of crista galli, the area where foramina are

olfactory / cribriform foramina

in cribriform plates, "holes" that allow olfactory nerves to enter nasal cavity

perpendicular plate

part of nasal septum, extends inferiorly from ethmoid bone

crista galli

superior ridge of ethmoid, "rooster's comb"

zygomatic bone

cheek bone, anterior part of zygomatic arch

maxilla

upper jaw bone

palatine process

in maxilla, part of hard palate

palatine

bone that forms the hard palate and parts of the nose and orbits

horizontal plate of palatine bone

forms posterior part of hard palate

vertical plate of palatine bone

forms part of the lateral nasal wall

lacrimal

bone located by the tear duct.

nasal bone

forms the bridge of the nose

mandible

lower jaw bone

ramus

vertical part of mandible

mandibular condyle

joins temporal bone with mandibular fossa

vomer

forms the inferior portion of the nasal septum

hyoid bone

a U-shaped bone in the neck, below mandible that supports the tongue