the skull (p2) Flashcards
skull bones are broken into (2)
facial and cranial bones
skull bone making forehead
frontal bone
skull bone forming central upper, back, and sides of skull
parietal bone
most posterior cranial bone, connects to parietal
occipital bone
bones on side of skull around temple and ear
temporal bone
bone in the middle base of skull. has wings kind of looks like butterfly
sphenoid
bone at root of nose with many perforations
ethmoid
small oblong bones, makes up part of nose
nasal bone
small bone forming inner part of eye socket
lacrimal bone
part of nasal septum; thin bone separating nasal cavities
vomer
lower jaw bone
mandible
upper jaw bone, doesn’t move while chewing
maxilla
cheekbone
zygomatic bone
suture connecting parietal and temporal bones
squamous suture
sutures connecting frontal and parietal bones
coronal suture
suture connecting parietal bones
sagittal suture
suture connecting parietal and occipital bones
lambdoid suture
bone feature around eyebrows
supraorbital margin
small openings above eye sockets
supraorbital foramen
small openings below eye sockets
infraorbital foramen
tooth sockets
dental alveoli
small openings on chin
mental foramen
horizontal “U” shape portion of mandible
mandible body
lateral portion on either side of mandible
ramus
superior aspect of ramus (is pointy)
coronoid process
bone feature articulating the mandible
condylar process
projection around zygomatic bone
temporal process
projection around temporal bone
zygomatic process
groove in ramus of mandible
mandibular notch
small slender projection from bottom of temporal bone
styloid process
rounded process beneath your ear
mastoid process
outer passageway in skull forming ear hole
external acoustic meatus
upper chambers of nasal cavity
middle nasal concha
lower features of ethmoid bone
inferior nasal concha
“palate” bone; roof of mouth
palatine bone
small holes that rhyme (posterior going forward)
jugular foramen, carotid canal, foramen lacerum, foramen ovale
located base of occipital bone, articulates with top vertebra
occipital condyle
hole relate to spinal cord at base of skull
foramen magnum
depression accepting condylar process of mandible
mandibular fossa
bulge on superior portion of ethmoid bone (where meninges connect)
crista galli
forms roof of nasal cavity, plates on either side of crista Galli
cribriform plate
saddle like spot supporting the pituitary gland superior side of sphenoid bone
Sella turcica
fontanel around temple area (joins frontal, temple, parietal, and sphenoid bones)
sphenoidal fontanelle
intersection of parietal, occipital, and temporal bones
mastoid fontanelle
intersection of both parietal bones and occipital bones in infants
posterior fontanelle
where front and parietal bones intersect on a baby’s head
anterior fontanelle