1. Anatomy-Skeletal System
Axial Skeleton

2. Anatomy-Skeletal System Introduction
Refer back to your skeletal diagram where you named the bones of the body that you know.
As we progress through today’s lesson and label the bones, if the bone is one that you labeled correctly on your diagram, place a check mark next to the bone.

3. Anatomy-Skeletal System Objectives
Students will be able to:
Define anatomical terms.
Identify the bones of the axial skeleton.
Label the bones.

4. Anatomy-Skeletal System Terminology
Axial Skeleton
Consist of bones that form the axis of the skeleton; the skull, spinal column, breast bone and ribs.
Support and protect the organs of the head, neck and thorax.
Lungs, liver, kidneys

5. Anatomy-Skeletal System Terminology
Articulate
Articulation
To unite by forming a joint/joints
Facet
A small, smooth, flat surface on a bone

6. Anatomy-Skeletal System Terminology
Foramen
A natural opening, especially through a bone
Process
A projection away from the main part of the bone

7. Anatomy-Skeletal System Axial Skeleton
Skull & Vertebral Column
Neck & spine
Neatly stacked bones
Affected by posture

8. Anatomy-Skeletal System Axial Skeleton
Vertebral Column
Three divisions
By type
Size
Function
Constantly shifting

9. Anatomy-Skeletal System Axial Skeleton
Vertebral Column
Cervical (7)
C1-Atlas
C2-Axis
Allow for rotation

10. Anatomy-Skeletal System Axial Skeleton
Vertebral Column
Cervical (7)
Cartilaginous joints
Vertebral discs
Foramen for the spinal cord

11. Anatomy-Skeletal System Axial Skeleton
Vertebral Column
Cervical
Highly mobile to allow for flexion, extension, rotation, circumduction & lateral bending

12. Anatomy-Skeletal System Axial Skeleton
Vertebral Column
Thoracic (12)
Articulate with the ribs
Also highly moveable
Rotation, flexion, extension
Abnormal curvatures

13. Anatomy-Skeletal System Axial Skeleton
Vertebral Column
Thoracic
Abnormal Curvatures
Scoliosis
Lateral curvature
Kyphosis
Posterior curvature

14. Anatomy-Skeletal System Axial Skeleton
Vertebral Column
Thoracic
Foramen for the spinal cord
Distinguished by long transverse processes

15. Anatomy-Skeletal System Axial Skeleton
Vertebral Column
Lumbar (5)
Largest bones
Trunk flexion & extension
Anterior curve
Lordosis

16. Anatomy-Skeletal System Axial Skeleton

17. Anatomy-Skeletal System Axial Skeleton
Vertebral Column
Sacrum (5)
Fused
Coccyx (4)
Tail bone

18. Anatomy-Skeletal System Axial Skeleton
Vertebra Anatomy
Spinous process
Transverse process
Vertebral foramen
Vertebral body
Facet

19. Anatomy-Skeletal System Axial Skeleton
Intervertebral Disk
Prone to injury due to compression

20. Anatomy-Skeletal System Axial Skeleton
Body
Spinous Process

21. Anatomy-Skeletal System Axial Skeleton
Cervical

22. Anatomy-Skeletal System Axial Skeleton
Thoracic

23. Anatomy-Skeletal System Axial Skeleton
Lumbar

24. Anatomy-Skeletal System Axial Skeleton

25. Anatomy-Skeletal System Axial Skeleton
Ribs
12 pair
7 true (1-7)
5 false (8-12)
2 floating (11-12)

26. Anatomy-Skeletal System Axial Skeleton
Sternum
Manubrium
Body of the sternum
Xiphoid Process
Costal Cartilage