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The Bones Of the Human Body

This Prezi Is About The bones Of The Human Body
by

Lane Uhler

on 2 February 2011

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Transcript of The Bones Of the Human Body

The Skeletal System Q: What IS the Skeletal System? A: A body system made up of bones, joints, and connective tissue. A: The body system that allows you to sit and stand, walk, run, jump, bend, lift, and carry things. A: Made up of the 206 bones in your body The BONES of the skeletal system give the body... #1. Shape #2. Support #3. Protection The SECOND major function of the Skeletal System is... PROTECTS INTERNAL ORGANS The THIRD major function of the Skeletal System is... PRODUCE BLOOD CELLS The FOURTH major function of the Skeletal System is... ALLOWS BODY TO MOVE MORE ABOUT THE SKELETAL SYSTEM Vocabulary Terms: Skeletal System Marrow Joint Cartilage Tendons Ligaments The Skeletal System is a body system made up of bones, joints, and connective tissue QUICK THINK: What is a sport or physical activity you enjoy doing? What role does your skeletal system play duirng this activity? The skeletal system provides the framework for movement and protection for internal organs during any activity you do! **Even every day tasks like standing up, sitting down, walking, running, jumping, bending, lifting, and carrying.** LET'S REVIEW... What are the major functions of the Skeletal System shape and support

protects internal organs

produces blood cells

movement. YOUR 206 BONES storage for minerals such as Calcium and Phosphorus Q: Why do we need Calcium and Phosphorus? Calcium makes bones strong and hard to help provent Osteoporosis (thinning/weakening of bones that result in bone fractures) Phosphorus combines with calcium to help form strong bones and teeth. Over 80% of the body's phosphorus is located in bone! produce body's blood cells Red bone marrow makes millions of blood cells every day needed for immunity and circulation. Marrow is a soft, spongy tissue in the center of some large bones (skull, ribs, pelvis, femur) What bones make up my Skeletal System?? Carpals = wrist

Metacarpals = hands

Phalanges = fingers

Tarsals = ankle

Metatarsals = foot

Phalanges = toes Joint the point where two bones meet QUICK THINK What is an example of a joint in your body? **Some examples you may have thought of are... knees, elbows, wrists, ankles, neck, hips, shoulders, skull, vertebre in back** FOUR TYPES OF MOBILE JOINTS: 1. Hinge Joints Allow movement in ONE direction - knees and elbows 2. Gliding Joints Help bones slide over one another without twisting - writsts, ankles, bones below your neck, in the collar bone Allow movement with limited rotation - between vertebrae of the neck and the head (turn head from side to side) Allow bones to move in all directions - hips and shoulders (rotate) 3. Pivot Joints Allow movement with limited rotation - between vertebrae of the neck and the head (turn head from side to side) 4. Ball - and Socket Joints Allow bones to move in all directions - hips and shoulders (rotate) Connective Tissues Cartilage a strong , flexible, gel - like tissue that cushions the joints covers bone surfaces to reduce friction during movement. Tendons tough bands of tissue attach MUSCLE to BONE
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