BIO1120- CHP14- Skull

frontal bone

supraorbital foramen (or notch)- transmits blood vessels and nerves

parietal bone

2 bones

sagittal suture

where parietal bones meet

coronal suture

Where the parietal bones meet the frontal bone

lambdoid suture

Where the parietal bones meet the occipital bone

external occipital protuberance

midline projection on the posterior surface

foramen magnum

where the brainstem and spinal cord meet

occipital condyle

Articulates with the first cervical vertebra

squamous suture

where the parietal bones meet temporal bone

external acoustic meatus

openings of outer ear

mandibular fossa

articulates with mandible

mastoid process

attachment site for muscles

styloid process

long, pointed projection

carotid canal

transmits internal carotid artery

jugular foramen

transmits internal jugular vein

internal acoustic meatus

opening for cranial nerves

zygomatic process

forms much of zygomatic arch

sella turcica

saddle-shaped depression (hypophyseal fossa) where pituitary gland rests

greater and lesser wings

lateral extensions

pterygoid process

inferior extensions for chewing muscle attachments

cribriform plate

contains many olfactory foramina for olfactory nerves

perpendicular plate

forms most of nasal septum

superior nasal concha

small extensions in nasal cavity

middle nasal concha

medium extensions in nasal cavity

ethmoidal sinus

many air spaces present

crista galli

attachment site of brain membranes

maxillary sinus

largest sinuses

alveolar arch

formed by alveolar processes

palatine bone (2)

L-shaped bones