The Skeleton 25

Types of Bone

100

Have complicated shapes and don’t fit any other category

Irregular 

200

Hollow medullary cavity on inside

Long

300

Job: provide stability to joints that bear weight

Short Bone

400

Job: protect internal organs (ex. Brain, heart, lungs, reproductive organs)

Flat Bone 

500

Short bones that are buried within tendons

Sesamoid 

Name That Cranial Bone

100

Makes up the top and side walls of the cranium

Parietal bones

200

Makes up the front wall of the cranium

Frontal bone

300

Shaped like a butterfly

Sphenoid bone

400

Deep bones that makes up much of the nasal cavity

Ethmoid bone

500

Makes up the back and bottom walls of the cranium

Occipital bone

Name that Facial Bone!

100

Largest and strongest bone of the face

Mandible

200

Make up the bottom and side walls of the orbits

Zygomatic bones

300

Forms the nasal septum together with the ethmoid bone

Vomer bone

400

Forms much of the hard palate, floor of the orbit, and nose

Maxillae

500

Include the tear duct (how tears leave the eye)

Lacrimal bone

Skull Basics

100

How many bones is the skull made of?

22

200

What are the two types of skull bones?

Cranial & facial

300

Which type of skull bones (from the big two) make up the structure of the face?

 Facial

400

Which type of skull bones protect the brain?

Cranial

500

There are ___ cranial bones.

There are ___ facial bones.

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