1. by Melanie Gray MSU ~ MAET CEP 811 by Melanie Gray MSU ~ MAET CEP 811 Skeletal System an interactive presentation Skeletal System an interactive presentation How this works! Click here for a quick tutorial! How this works! Click here for a quick tutorial!

2. A quick tutorial... This is an interactive presentation where you are in charge. To move to the next slide click on the arrow on the right side and to move back a slide click on the arro w on the left. The diamond will take you to the main menu/home. Don’t forget to complete your notes page too! Home

3. The Skeletal System What is the skeletal system? Inside our bones. What are joints? Home Click here if you have Click here if you have completed all completed all 3 sections. 3 sections.

4. What are our bones made of? Periosteum the outer surface of bone Hard Bone the tough dense outer layer of bone Spongy Bone inside the bone there are cells with spaces between them Marrow thick jelly like substance - its job it to make blood cells Home

5. Inside the bones Yellow marrow stores fat and releases it when the body needs it Red marrow Makes red and white blood cells and platelets in large amounts Home

6. QUIZ TIME! Click on the correct answer Red marrow stores fat and releases it when the body needs it. True False

7. Oops - let’s go back and look at that question again. Oops - let’s go back and look at that question again.

8. The skeletal system is the framework that holds our body together. Without bones we would be a pile of mush on the floor. Home What is the skeletal system?

9. Skeletal System Bones also protect our body. our skull protects our brain our spine protects the nerves in our spinal column our ribs protect our heart & lungs Home

10. That is a lot of bones! Babies have over 300 bones in their body. Adults have 206 bones in their body. half of our bones are in our hands and feet the largest and heaviest bone is the femur The smallest bone is in the ear…ear ossicles. The stapes (“stirrup”), incus ("anvil"), and malleus (“hammer”). Home

11. The Spine The spine is the central support for the body. It is what allows us to stand up. The spine is made up of separate bones called vertebrae. There are 33 vertebrae in the spine 7 Cervical - in the neck 12 thoracic - chest area 5 lumbar - lower back 5 Sacrum & 4 Coccyx - fused vertebrae that make up the tailbone Home

12. Did you know? That Giraffes and humans have the same number of bones in their neck. Giraffe neck vertebrates are just much,much longer Home

13. The rib cage is made up of 12 vertebra, 24 ribs and the sternum. It protects our heart and lungs. Menu The Ribs

14. Our lower body is incredibly strong. The pelvis - hip bone- helps us stand upright and move Other bones in the leg are the femur, fibular & tibia Our patella - knee cap - protects the knee joint Hips and Legs Home

15. Shoulders & Arms The clavicle and scapula form the shoulder There are 3 bones that make up our arms humorous radius ulna Home

16. Half of our 206 bones are in our hands and feet Our hands have 27 bones Our feet have 25 bones Hands and Feet Home

17. QUIZ TIME! Click on the correct answer How many bones are in the adult human body? 33 bones 206 bones 300 bones

18. Oops - let’s go back and look at that question again. Oops - let’s go back and look at that question again.

19. What about Joints? A joint is a location where two or more bones meet. Some joints do not move - like those in our skull. But others help our body move. Home

20. Ball and Socket Joints Home

21. Hinge Joints Home

22. Pivot Joint Home

23. Sliding/Gliding Joints These joints slide past each other. Midcarpals (in our hands) and midtarsals (in our feet) are gliding joints. See if you can feel the gliding joints as you make your hand into a fist. Home

24. Double joints? Home

25. QUIZ TIME! Click on the correct answer What type of joint is our shoulder? sliding joint hinge joint ball and socket joint pivot joint

26. YEAH!! You are correct!

27. Oops - let’s go back and look at that question again. Oops - let’s go back and look at that question again.

28. Congratulations! You have completed this interactive presentation of the skeletal system. Oops! I clicked on the wrong button! Take me home! Oops! I clicked on the wrong button! Take me home!