Exam 1 Osteology - Skull Flashcards
How many bones in the skull?
22 total
8 cranial
14 facial
other names for cranial bones
neurocranium, cranium, brain case
calvaria
skull cap
facial bones
viscerocranium; not in contact with the brain, all are paired except vomer and mandible
neurocranium
frontal parietal occipital temporal sphenoid
viscerocranium
nasal palatine lacrimal zygomatic maxilla inferior nasal conchae vomer
fontanelles
frontal
occipital
sphenoidal
mastoid
frontal fontanelle
anterior, closes by 18-24m, becomes bregma
occipital fontanelle
posterior, closes by 2m, becomes lambda
sphenoidal fontanelle
anterolateral, closes by 3m, becomes pterion
mastoid fontanelle
posterolateral, closes by 1y, becomes asterion
sagittal suture
between 2 parietal bones; perpendicular to frontal and occipital bones
coronal suture
between frontal and parietal bones
metopic suture
between 2 frontal bones, closes around 6-8y
lambdoidal suture
between parietal and occipital bones
squamous suture
between parietal and temporal bones
frontal bone parts
frontal squama supraorbital arch supraorbital foramen supracilliary ridge glabella bregma
supraorbital foramen
CN V1
glabella
means smooth, hairless
aka mesophryon, antinion, intercilium
parietal bone parts
parietal foramina (emissary vein) temporal lines (temporal m.)