1. Thursday 10/29– Ch. 5 Bone
LT: List the functions of the skeletal system
Name the four main kinds of bones
Identify the anatomical areas of a long bone
ET: Read “Functions of the Bones.” on pgs. 112 and 113.
List the five major functions of bones and provide a brief description for each

2. Functions of Bones Support – Bones for the internal framework
Protection – Keep soft organs protected (Brain)
Movement – Muscles are attached by tendons to allow body movement
Storage – Stores fat and minerals (Ca+)
Blood cell formation – Red blood cell are made from red bone marrow (Hematopoiesis)

3. Classification Long – longer than they are wide
Short – Cube shaped and mostly spongy
Flat – Thin, Flat, and Curved
Irregular – Bones that do not fit the above categories

4. Diaphysis: Shaft
Periosteum: Membrane connected by Sharpey’s fibers
Epiphyses: Ends
Articular Cartilage (hyaline)
Yellow marrow or medullary cavity: Fat

5. Classification
Spongy
Compact

6. Compact (wall of the diaphysis)
Types of Bone Tissue
Compact (wall of the diaphysis)
Spongy (cancellous, epiphysis) - red marrow

7. Medullary Cavity – hollow chamber filled with bone marrow
Inside the Long Bone
Medullary Cavity – hollow chamber filled with bone marrow
Red Marrow (blood)
Yellow Marrow (fat)
Endosteum
– lining of the medullary

9. Microscopic Structure
MATRIX - where the bone cells live
OSTEOCYTES  - mature bone cells, enclosed in tiny chambers called LACUNAE
OSTEOCYTES form rings (LAMELLAE) around a HAVERSIAN CANAL which houses blood vessels
Osteocytes are linked by CANALICULI
Haversian Canals are linked by VOLKMAN's CANALS

10. Osteocytes
Haversian Canal
Volkmann’s Canal

12. BONE COLORING!

13. Test Yourself
Find the...
Haversian Canal
Volkman's Canal
Lamellae
Spongy Bone
Compact Bone

14. Gross Anatomy of Bones
Create detailed, labeled drawing of the each different specimen (be careful there are duplicates)
Try and see as much of the long bone anatomy as possible and identify the different parts
Your drawing will be turned in at the end of the period

15. Tuesday 11/3 – The Bone ET: Define the following terms
Ossification
Osteoblast (bone + germinate)
Osteoclast (bone + broken)
Osteocyte
LT: Today I will..
Describe briefly the process of bone formation in the fetus
Summarize the events of bone remodeling
Name and describe the various types of fractures

16. No Notes! Appropriate names only!
Quiz Time!
Get with a partner or group and go to Kahoot.it
No Notes! Appropriate names only!

17. Bone Cells

18. Wednesday 11/4 – Bone Remodeling
Today we will model Healthy bone remodeling that occurs after injury or stress

19. Ossification – Bone formation
Osteoblast cover a cartilage model of the bone with bone matrix
The matrix will absorb mineral salts and harden and be come compact bone
Remodeling

20. Thursday and Friday 11/2-11/6
Learning objective:
To learn and become a forensic scientist
Apply your forensic knowledge and identify bones at a crime scene

21. Thursday 11/7 – Bone Fractures
There are eight main types of bone fracture
Simple
Compound
Comminuted
Compression
Depression
Impacted
Spiral
Greenstick

22. Healing A Bone Fracture
Hematoma – blood filled swelling
Bony Callus – osteoblast and osteoclast replace the fibrous callus with spongy bone
Fibrocartilage Callus – various cells create cartilage, bone matrix, and collagen fibers
Bone remodeling

23. Bone Markings
You will not be tested on these, however you should be familiar with them and complete the section of the worksheet that covers this topic.