cranium bones

5 skeletal functions

Protect organs, store, attach, move and support against gravity

axial skeletal

Skull spine rib

How many bones do the skull have? Break it down

22 8 cranium 14 facial

What is a fontanelles?

Soft spot

Large bones in the cranium

Frontal parietal temporal occipital

Bone landmarks

Distinct marking ridges grooves or holes

Foramen canal fissure

Opening in bone to allow for nerves blood supply or a passageway

Sinus

Hollow chamber in bone usually filled with air

Process ramus

Elevation in the bone

Trochanter tuberosity tubercle crest line spine

Processes or projections for tendons or ligament attachments

Head neck condyle trochlea facet

Processes designed for articulation with adjacent bones

Fossa sulcus

Depression in bone

Sphenoid bone

Butterfly shape completes the side of the skull and to the floor and wall of the eye socket

Ethmoid bone

Lies I front of sphenoid part of the orbital wall and nasal septum

Temporal bones

Opening that leads to the middle ear

Foramen magnum

Occipital bone contains a large opening which spinal cord passes through

Mastoid sinuses

Two sinuses drain into middle ear

Mastoiditis

Condition that can lead to deafness inflammation of the mastoid sinuses

Sinusitis

Soft tissues inside the sinuses become inflamed from a virus bacteria or allergy

Foramina

Skull allow for many functions such blood vessels nerves n spinal cords

Foramen magnum

Allows for passage of the spinal cord into the skull

Carotid canal

Opening in temporal bone for internal carotid arteries

External acoustic meatus

For transmission of sound located within temporal bone