1. Axial Skeleton

2. 22 bones Skull 8 cranium 14 face Encloses cranial cavity Fluid-filled
Cushions and supports brain
14 face

3. Skulls of Infants and Children
Contains more bones
Separated by fontanels
Allow growth and distortion
Skull growth complete at 7 yrs.

4. Cranium Bones
Sutures
Frontal
Parietal
Temporal
Occipital

5. Facial Bones
Nasal bones
Zygomatic bone
Maxilla
Mandible

6. Hyoid Does not directly articulate with any other bone.
Aids in tongue movement and swallowing

7. Vertebral Column Thoracic Cage

8. Spinal Curvature 4 spinal curves Primary Secondary Thoracic Sacral
Cervical
Lumbar

9. Vertebral Types Cervical (7) Thoracic (12) Lumbar (5) Sacrum (5 fused)
C1 (Atlas)
C2 (Axis)
Thoracic (12)
Lumbar (5)
Sacrum (5 fused)
Coccyx (3-5 fused)

13. Thoracic Cage True ribs (Top 7) False ribs (Middle 3)
Floating ribs (Bottom 2)
Sternum