Adult skull bones
Functions of the skull?
Protect cranial cavity, the brain,nerves, sensory organs, openings for digestive and respiratory tracts
What are fontanellas?
area of connective tissue where fragments are not fused yet
What bone forms the bridge of the nose
nasal bone
Describe what the 6 ossicles are
3 tiny bones on each ear that are used for hearing
At what age are sutures present and fusion is complete?
age 4
The zygomatic arch is also known as..
the cheekbone
Cranial bones of the skull?
Frontal,Parietal, sphenoid,ethmoid, temporal,occipital
Name the fontanelles.
anterior,posterior,sphenoid,mastoid fontanelles
What bone has a shape of a butterfly or bat?
sphenoid
What enclose the cranium?
cranial cavity
Why do fontanelle's fuse?
Infants need flexible soft spots so the skull can be distorted without damage
What bone is the lower jaw?
mandible
What connects the cranial cavity with the vertebral canal?
foramen magnum
What distortion of the skull occurs to infants that would create damage if not for the fontanelles?
process of birth
what are the facial bones of the skull?
nasal,lacrimal,zygomatic,inferior nasal conchae,vomer,maxilla,mandible