The Skeletal System

Bones -Your Support System

1. To Support 3.To Protect 2. Gives Shape 4. Helps Move A: Purpose - The function of the Skeletal system 1. To Support 3.To Protect 2. Gives Shape 4. Helps Move

B; Facts: 206 A: Skull 1. ___________ Bones in the Skeleton 2. Classifided into 4 groups: A: Skull B: Backbone D: Arm and Leg Bones C: Trunk bones

Skull Brain C: Parts: 1. A. Protects ___________and gives head shape B. Made up of 22 bones(only moveable is jaw) C. The smallest are in the inner ear

Protects 2. Backbone: A: _______________Spinal Coard B: Made of 33 bones called vertebra C: Support weight of body

3: Ribcage Lungs A: Protects ___________ and Heart

Pelvis 4. Liver A: Protects the and the. Kidneys

II. Cartilage: 1. Smooth 2. Spongelike 3. Tough and Flexible Ex: Gristle of meat A: Characteristics 1. Smooth 2. Spongelike 3. Tough and Flexible

1. Cushions bones when you walk and move. B. Function 1. Cushions bones when you walk and move. 2. Reduces friction on ends of the bones. Get 23 chicken legs for kids to eat and view cartigedge.

2. Nose, ear, trachea (Windpipe) C. Location 1. Found between bones 2. Nose, ear, trachea (Windpipe)

2. Hold bones together at Joints III. Ligaments A. Fibers 1. Strong and Tough 2. Hold bones together at Joints

IV. Joints: Where bones are joined together A. Purpose- Allow for Movement

1. Fixed joint- Moves very little B. Types of Joints: 1. Fixed joint- Moves very little Skull

2. Ball and socket- Allows to move in large circles. Hips shoulders

-Allows movement back and forth 3. Hinge Joints- -Allows movement back and forth Knees Elbows

Allows bones to move in a twisting motion 4-Gliding Joint Allows bones to move in a twisting motion Between Vertebrae Wrist

Movement up and down and in a circle 5. Pivot Joint Movement up and down and in a circle Connects Head

Without this, bones become soft V. Keeping Bones Healthy Calcium A. Need _______________ Without this, bones become soft

B. Vitamin D MILK Good Source is

C. Diseases of the Bones 1. Osteoporosis -results in a loss of Calcium, bones become soft -Leaves bones thin, brittle and easily broken

Lateral curvature of spine - Unequal shoulders and back pain 2. Scoliosis Lateral curvature of spine - Unequal shoulders and back pain

An inflammation of joints -Chronic Pain 3. Rheumatoid Arthrits An inflammation of joints -Chronic Pain

B. Keeping things off steps VI. Safety A. Use Helmets B. Keeping things off steps to prevent falls Bring in two melons- Put one in a bike helmet Roller blade pads, wrist pads etc Hockey gear

Apply ice pack for the first 12 hours and heat pack for next 12 hours. VII. First Aid A. Sprains Apply ice pack for the first 12 hours and heat pack for next 12 hours.

B. Broken 1. DO NOT MOVE 2. GET HELP!

C. Two types of broken bones 1. Fracture 2. Compound Fracture Bones break through the skin