1. The Skeletal System Parts of the skeletal system
Divided into two divisions
Axial skeleton
Appendicular skeleton

2. Functions of the Skeletal System
Hematopoiesis

3. Skeletal Tissue
Osseous tissue
Two types:
Figure 5.2b

4. Classification of Bones
1. Long bones
Ex.
2. Short Bones
3. Flat Bones
4. Irregular Bones

5. Classification of Bones on the Basis of Shape
Figure 5.1

6. Gross Anatomy of a Long Bone
Diaphysis
Epiphysis
Figure 5.2a

7. Structures of a Long Bone
Periosteum
Sharpey’s fibers
Arteries
Figure 5.2c

8. Structures of a Long Bone
Articular cartilage
(Articular – relates to the joints)
Figure 5.2a

9. Structures of a Long Bone
Medullary cavity
Infants vs Adults
Figure 5.2a

10. Quick Write Draw and label bone: 1. Diaphysis 2. Epiphysis
3. Periosteum (what do I do??)
4. Sharpey’s fibers (what do I do??)
5. Articular Cartilage (what do I do??)

11. LET’S DO THE CHICKEN DANCE!!!!!!

12. Microscopic Anatomy of Bone
Osteon (Haversian System)
Central (Haversian) canal
Volkmann’s (perforating) canal

13. Microscopic Anatomy of Bone
Lacuna –
Canaliculus –
Lamella –
Detail of Figure 5.3

14. Quick Write Give the steps for an osteocyte to receive nutrients?
1. Blood
2. Enters… Osteocyte

15. Types of Bone Cells
Osteocytes
Osteoblasts
Osteoclasts
remake entire skeleton about every 10 years – 10%/year

16. Changes in the Human Skeleton
Ossification
Cartilage remains in isolated areas
(hyaline, fibro, elastic, articular)
Epiphyseal plates vs Epiphyseal lines

17. Stages of Bone Growth

19. Bone Remodeling
Video
Dependent on:

20. Bone Fractures
Closed (simple) vs Open (compound)
Treatment:

21. Common Types of Fractures – (p. 137)
Table 5.2

22. Repair of Bone Fractures (diagram)

23. surgery

25. Broken leg broken arm

26. STOP

27. Bone Markings Bulges, depressions, and holes that serve as:
Sites of attachment for muscles, ligaments, and tendons
Joint surfaces
Conduits for blood vessels and nerves

28. Bone Markings (see table pg 134)
Categories of bone markings
A. Projections and processes – grow out from the bone surface “T”
B. Depressions or cavities – indentations “F”
CHICKENS SOON TO COME…….

29. Bone Markings: Projections – Sites of Muscle and Ligament Attachment
Tuberosity – rounded projection
Crest – narrow, prominent ridge of bone
Trochanter – large, blunt,
irregular surface
Tubercle – small rounded projection
Epicondyle – raised area
above a condyle
Spine – sharp, slender projection
Process – any bony prominence

30. Bone Markings: Projections – Projections That Help to Form Joints
Head – bony expansion carried on a narrow neck
Facet – smooth, nearly flat articular surface
Condyle – rounded articular projection
Ramus – armlike bar of bone

31. Bone Markings: Depressions and Openings
Meatus – canal-like passageway
Sinus – cavity within a bone
Fossa – shallow, basin-like depression
Foramen – round or oval opening through a bone