Your Skeletal System

1. Your Skeletal System What does it do?_____________________________________________________________________________________________________________________________________________________________________________________________________________________________

2. Long Bones • Bones that are longer than they are wide • ___________ • ___________ • ___________ • ___________ • ___________ • ___________ • ___________ • ___________ • ___________

3. Short bones • Bones that are nearly equal in length and height • _________ • _________ • _________ • _________ • _________

4. Flat bones • Bones that are thinner and “flatter” than other bones • Provide for protection—brain behind the skull bones; lungs and heart behind the ribs • ___________ • ___________ • ___________ • ___________

5. Irregular bones • Bones that are not “normally” shaped—thus they are irregular. • ______________ • ______________

6. Connective Tissues of the skeletal system __________ _________ __________

7. What do they do? • Cartilage • _______________ and flexible • Serves as ________________ in many joints • Some can heal if injured if there is a ________________ • Most _______________heal

8. What do they do? • Ligaments • ________________ • Connects ________ to __________ • Generally __________ heal after injured • Ex. _____________________

9. What do they do? • Tendons • ________________ • Connects _____________ to _______________ • Ex. ___________________

10. Ossification • When bone forms, is renewed, or repaired • ____________ • “____________” bone • ____________ /fractures

11. Layers of bone • _________________ • Hard outer layer of bone • _________________ • Hard/dense protective layer • _________________ • Porous bone providing stability • _________________ • Center of bone; hollow tube-like area containing the marrow which produces blood cells.

12. Bone marrow Found in the _________________ of long bones Forms __________ and ___________ blood cells

13. Joints—where bones come together to allow for a wide ROM. _______________ _______________ _______________ _______________

14. Ball-and-socket • Rounded—ball-like—end of one bone fits into the rounded hole of another • Allows for a significant ROM. • ________ • _________

15. Hinge • Allows a joint to bend and straighten or open and close • Aka—__________ and __________ • __________ • __________

16. Pivot • Allows for a _________________ of rotation • Turning your ______________ using the cervical vertebrae • “Supinating and pronating your forearm—radius over ulna

17. Gliding/ellipsoidal • Oval-shaped end of one bone fits into the curved space of another. • ________________

18. Injuries/disease/disorders • Scoliosis • Side-to-side ______________ of the _______________

19. Continued • ___________________ • Progressive loss of bone mass due to lack of calcium and/or lack of weight-bearing exercise.

20. Continued • _______________/Osteocarcinoma • Cancer of the bone

21. continued ______________-bruises—blood vessels in, on, and surrounding bones break due to force and leak around the bone Fractures—____________________________

22. continued ______________-joint has abnormally separated; can often cause stretching and even tearing of ligaments and tendons Sprain—________________________________________________________________________ Strain-______________________________________________________________________________ __________-inflammation and swelling in the joints __________-inflammation and swelling in the fluid-filled sacs that surrounds the joint