1. Ch 16-Your Body Systems

2. What Do I Expect Explain the functions of the skeletal systems Identify four types of joints List some problem of the skeletal system Identify healthful behaviors to keep your skeletal system healthy

3. Skeletal System A body system made up of bones, joints, and connective tissue The skeletal system is the framework(shapes and supports) for your body. The skeletal system works with the muscular system. This allows you to walk, run, jump, bend, lift, and carry.

4. What Else Does It Do?? Skeletal system also provides protection for our internal organs. Name two bones that you can think of that provides protection.

5. More Functions… There are 206 bones that make up the skeleton of your body. Each bones is a living structure that function as storage centers for minerals, such as calcium and phosphorus.

7. Back to the Bones Bones also produce the body’s blood cells. Red bone marrow makes millions of blood cells each day. Marrow is a soft tissue in the center of some bones.

8. Phosphorus Phosphorus is an element essential to metabolize protein, calcium, and glucose (sugar). It is needed for bone and tooth formation (85% of phosphorus is found in the skeletal system), cell growth, heart muscle contraction, and kidney function (waste filtration).

9. Study Those Bones

10. Human Joints Hinge- movement in one direction Gliding-bones slide over one another Pivot-allow movement with limited rotation Ball and socket-bones are able to move in all direction.

11. Connective Tissues Cartilage- strong, flexible, gel like tissue that cushions your bones. Cartilage reduces friction during movement. Where else is there cartilage? Tendons-tough bands of tissues that attach your muscles to bones. Ligaments-cordlike tissues that connect the bones in each joint.

13. The cartilage is grown in a gel medium The new cartilage has been put in the defective sight.

14. Tendon is being repaired Tendons attach muscles to bones

15. Ligaments attach bone to bone Anywhere there are human joints there are ligaments and tendons.

16. Problems of the Skeletal System Our body is strong and durable, but can develop problems because…. Fracture is….

17. Evaluate..what kind are are these?

18. Dislocation occurs when a bone is pushed out of it’s joint, usually stretching or tearing a ligament.

19. Sprain-occurs when the ligaments in a join are stretched or twisted and causes swelling.

20. PRICE What is PRICE? Protect the wound from further injury Rest-stay off of it Ice the whole area Compression-keep it bandaged Elevation-keep it above your heart

21. Overuse Injuries Very common in athletes and in teens. Shin splint are common among runners and aggressive walkers. Shin Splints’ is a term often used to describe exercise -induced stress reactions upon structures in the lower leg. These structures include bone, muscle, tendon and connective tissue. Shin splints are generally associated with over-use.of your anterior tibialis.

22. Scoliosis is a curvature of the spine to one side. It appears to have a slight S or C curve. It can cause back pain and difficulty Breathing. The cause is not known in most cases.

23. Osteoporosis Condition characterized by brittle and porous bones. It develops because of long term deficiencies of calcium, vitamins, and lack of exercise.

24. So… how can I help?? Eat right, and exercise. Make sure and take time to heal before you go back to your sport. (PRICE) Use protective gear when playin sports, riding your bike, or skating.

25. Short Answer Jan understands the importance of eating foods rich in calcium. She is allergic to milk, however. What suggestions can you make that might help Jan?? Name two ways to protect your bones from injury while playing a sport.

26. Lesson 1 Review What are joints? Name 4 types of joints. List three functions of the skeletal system. What are two problems of the skeletal system?

27. VOCAB STUDY