1. TOPIC: Locomotion Aim: Explain the life process of locomotion and the importance of the skeletal system. Do Now: Do you know what the strongest bone in your body is? HW:

2. A B C D E F G Pituitary Gland Thyroid Gland Parathyroid Gland Adrenal Gland Pancreas Ovaries Testes

3. X Y Z

4. Your Femur (thigh bone) is stronger than concrete. Bone is stronger, inch for inch than the steel used in skyscrapers. It’s about 1/4 of your height.

5. The jawbone is the hardest in the human body.

6. Locomotion Movement of the body or body parts from 1 place to another

7. Systems involved in locomotion Skeletal system Muscular system

8. Regulation of locomotion Nervous system controls and coordinates skeletal and muscular systems

9. Skeletal System functions 1. Movement

10. 2. Protects organs & tissues

11. 3. Gives body shape & support

12. 4. Produces blood cells

13. 5. Stores calcium and phosphorus

14. How many bones do we have? 206 bones Born with more (300) Fuse together as we get older

15. Inside of bone Bone marrow

16. 2 types: –Yellow marrow = fat cells

17. –Red marrow = produces blood cells

19. Did you know… 1.Yellow marrow is found in the hollow interior of the middle portion of long bones. 2.Red marrow is found mainly in the flat bones, such as the pelvis, sternum, cranium, ribs, vertebrae and scapulae, and at the ends of long bones such as the femur and humerus. 3.When someone is born, all marrow is red. Eventually, some of it gets converted into yellow marrow. 4.The fat cells in yellow marrow are the last resort for body’s energy requirements and can be consumed in an event of extreme hunger.

20. Let’s summarize… 1.Explain the process of locomotion. 2.Explain what regulates the skeletal and muscular systems. 3.Explain some functions of the skeletal system. 4.Explain the two types of bone marrow and their functions.