Types of Bone
Have complicated shapes and don’t fit any other category
Irregular
Makes up the top and side walls of the cranium
Parietal bones
Largest and strongest bone of the face
Mandible
How many bones is the skull made of?
22
Hollow medullary cavity on inside
Long
Makes up the front wall of the cranium
Frontal bone
Make up the bottom and side walls of the orbits
Zygomatic bones
What are the two types of skull bones?
Cranial & facial
Job: provide stability to joints that bear weight
Short Bone
Shaped like a butterfly
Sphenoid bone
Forms the nasal septum together with the ethmoid bone
Vomer bone
Which type of skull bones (from the big two) make up the structure of the face?
Facial
Job: protect internal organs (ex. Brain, heart, lungs, reproductive organs)
Deep bones that makes up much of the nasal cavity
Ethmoid bone
Forms much of the hard palate, floor of the orbit, and nose
Maxillae
Which type of skull bones protect the brain?
Cranial
Short bones that are buried within tendons
Sesamoid
Makes up the back and bottom walls of the cranium
Occipital bone
Include the tear duct (how tears leave the eye)
Lacrimal bone
There are ___ cranial bones.
There are ___ facial bones.
8,14