1. Understandings: Why do we have a skeletal system? What makes up our skeletal system? Do Now: Pick up the skeleton worksheet and match up the name of the bone with the bone. Do your best

2. Objective:  Label the parts of the skeletal system  Explain how the skeletal system functions  Identify problems with the skeletal system  Recall how to care for your skeletal system

3. Skeletal System  Body System: a group of organs that work together to perform an important function  Skeletal System: a frame work of bones that supports you, allows you to move, protects vital organs and produces blood cells  Functions:  Supports you  Allows you to move  Protects vital organs  Produces blood cells

4. The Skeletal System  Made up of 206 bones.  The bones of the face, skull, vertebral column and rib cage make up your body’s central framework for support. (Protects vital organs!)

5. Important “Bone” Terms  Cartilage: a strong flexible tissue on the ends of some bones  It provides a cushion where bones come together.  Ligaments: strong cords of tissue that connect bones to bones in your joints.

6. Support and Movement  Which bones provide support and movement?  Bones of the:  Arms  Legs  Pelvis  They work with muscles to help us move!

7. Anatomy of a Bone The Inside of a Long BoneParts of a Long Bone  Periosteum – covering on bones  Compact Bone – hard bone  Spongy Bone – soft bone  Bone Marrow – blood cells made here  Parts of the Bone Parts of the Bone

8. Movie: The Skeletal System

9. How do our bones move?  Joint: a point at which two bones meet.  Without joints, you could not move.  Three main kinds of joints:  Hinge Joint  Ball and Socket Joint  Fixed Joint Muscle and Bones Make Joints Move

10. Joints Types of JointsMovementsLocations Hinge Joint Provides back and forth movement. Elbow, Knees Fixed JointNo movement is allowed.Plates of the skull Ball-and-Socket Joint Allows a wide range of movements. Shoulder, Hip

11. The Skeletal System Skull Clavicle Scapula Humerus Sternum Rib Cage Vertebrae Ulna Radius Femur Patella Fibula Tibia

17. The X-Ray GIFs of Cameron Drake  Moving X-rays Moving X-rays

18. Brain Pop Videos  Joints Joints  Broken Bones Broken Bones

19. Problems and Caring for the Skeletal System

20. Skeletal System Problems OsteoporosisOsteoporosis Fact!  A disease in which bones become thin and brittle.  Who does this affect?  55% of people who are over the age of 55.  Of the 10 million Americans who have this disease, 8 million are women and 2 million are men.  (from http://www.nof.org/osteopor osis/diseasefacts.htm)  About 85-90% of adult bone mass is acquired by age 18 in girls and 20 in boys. Building strong bones during childhood and adolescence can help to prevent osteoporosis later in life.  (from http://www.nof.org/osteop orosis/diseasefacts.htm)

21. Skeletal System Problems Scoliosis Photograph of someone with scoliosis.  Causes: deformity of the spine win which the spine develops an S-shaped curve when viewed from behind.  Can this affect you? Affects 2% of women and.5% of men in the general population

22. Skeletal System Problems Sprain What happens when you sprain your ankle?  Stretching or partial tearing of ligaments.  Can be painful and cause swelling around the injured joint.  http://yucky.discovery.com /flash/body/yuckystuff/ankl esprain/js.index.html http://yucky.discovery.com /flash/body/yuckystuff/ankl esprain/js.index.html

23. Caring for your Skeletal System  Exercise regularly using weights, walking, running, jumping rope, dancing, hiking, soccer, or basketball (just to name a few activities!).  Wear proper fitting shoes.  Select foods and beverages rich in calcium, phosphorus, and vitamin D.  Sit, stand, and walk with correct posture.  Participate in screenings for scoliosis.

24. Skeleton Game  Labeling the Skeleton Labeling the Skeleton