1. Skeletal System

3. Ready, SET, BONES!!!!!!!
On your table there is a bag of bones for you and your partner to put together.

4. Did you know???? A baby has 300 and an adult has 206.
2. 14 bones are in your face.
3. 8 bones are in each wrist.
4. 23 bones are in each foot including the ankle
5. Your bones consist of 50% water and 50% solid matter.

5. Function of the skeletal system
Protection: protects many important organs.
Ribs protect the heart and the lungs
The vertebrae protect the spinal cord
The cranium/skull protects the brain.

6. 2. Movement: Skeletal muscles are attached to your bones
2. Movement: Skeletal muscles are attached to your bones. Skeletal muscles pull on bones to produce movement.

7. 3. Blood cell formation- some bones are filled with special bone marrow that makes red blood cells.

8. 4. Storage: bones store calcium that help the nerves and muscles function properly. Your bones also store fat that can be used for energy.

9. 5. Support– the skeletal system gives structure and support to your body, like the framework of a building.

10. Types of Joints

12. Types Of Movable Joints A joint is a union of two or more bones
Types Of Movable Joints A joint is a union of two or more bones (also known as an articulation)
Pivot
Hinge
Top of the neck
Elbow/Knee
Ball & Socket
Gliding
Intercarpal joints
Shoulder/Hip
Immoveable joints are found… in the skull

13. Lets Review
Stand up and show 3 people in the room a pivot joint, a hinge joint, ball in socket joint and a gliding joint.

14. Types of Bones Long Short Flat Irregular Support Ex- Femur, Humerus
Stability with
little movement
Ex- Carpals & Tarsals
Support
Ex- Femur, Humerus
Flat
Irregular
Provides Protection
Ex- Ribs, Scapula
unique shape for
various functions
Ex- vertebrae, mandible

15. Structure: BONES!!!

16. Structure:
Outer Membrane

17. Bones are connected by… Connective Tissues

18. allows joints to move easily, and supports soft tissue
Cartilage
Cushions bones,
allows joints to move easily, and supports soft tissue

19. bones to bones at the joints
Ligament
Connects
bones to bones at the joints

20. Tendon
Connects
muscle to muscle or
muscle to bone

21. Types of Fractures

22. Open Fracture a fracture that protrudes to the exterior of the body.

23. Closed Fracture A Fracture that does not break the skin

24. Greenstick Fracture Only one side of the bone is broken, mostly seen in children

25. Transverse Fracture Break at a right angle and caused by direct traumatic injury

26. Spiral Fracture Bone broke because of a twisting type motion.

27. Skeletal System Information
Appendicular
System
126 bones
Axial System
80 bones

28. Conditions of the Skeletal System
Osteoporosis
Bones become fragile and more likely to break
Osteoarthritis
Joint disorder where the cartilage is wearing away