Bones of the Skeleton

1
Bones of the Skeleton
A normal, adult human has 206 bones in their
skeleton.
Oh please God, let me do well on this exam!
A normal, human infant has 350 bones in their
skeleton.
2
Vertebrae

• Spinous process
• Most dorsal
• Transverse process
• Bi-lateral projections
• Body

3
Modified Cervical Vertebrae

• C1. The Atlas
• God that held the heavens
• C1 holds the skull
• Superior articular faucet
• Articulation with skull
• C2.The Axis
• Allows for rotation
• Around the Dens
• Superior articular faucet
• Broken Necks

4
Inter-vertebral Discs

• Function
• Cushions and absorbs
• No bone to bone contact
• Dissipates energy with compression
• Annulus Fibrosis
• Nucleus Pulposous
• waterbed mattress

5
Sternum

• Manubrium
• Body
• Xiphoid Process

6
The Rib Cage

• Ribs Costals
• True ribs
• Secondary articulation to body of sternum
• Costal cartlidge
• Hyaline Cartlidge
• ??Purpose??
• False or floating ribs
• NO articulation with sternum
• is variable within individuals

7
Bones of the Cranial Vault