The Skeletal System Gaiser Life Science

Know What are the functions of the skeletal system? (There are five of them.) Evidence Page 54 The skeletal System I dont know any. is not an acceptable answer. Use complete sentences. After listening to the PowerPoint lecture, come back here and list evidence to explain why your answer to the above question is or is not a good answer. You may also use other outside sources to help you respond.

Clarifying ?s Information Page 55 Function Bone strength Can absorb more load than concrete without breaking, but makes up only 20% of the bodys weight. 1. Shape & support 2. Movement 3. Protect internal organs4. Produces blood cells Bones contain cells and tissue. New bone tissue forms as you grow. Joints of skeleton 1. Immovable 2. Movable Bone growth Example: Skull (sutures) Example: knee The skeletal System 5. Stores materials until body needs them A. hinge joint – forward/backward B. Ball & socket – large range of motion Example: shoulder allows little or no movement

Clarifying ?s Information Page 56 Summary: The skeletal System Example: shoulder Example: neck C. Pivot – one bone rotates around another Example: ankle D. Gliding – bone slides over bone Bone care 1. Balanced diet Calcium & phosphorus Example: milk, whole grains, leafy green veggies, eggs, and meat Exercise and aerobic activities Examples: running, bicycling, basketball, skating, swimming, soccer, walking, and others Bone structure 1. Compact bone 2. Spongy bone 3. Outer membrane4. Bone marrow 5. Canals6. Blood vessels

Clarifying ?s Information The skeletal System Function Bone strength Can absorb more load than concrete without breaking, but makes up only 20% of the bodys weight. 1. Shape & support 2. Movement 3. Protect internal organs4. Produces blood cells Bones contain cells and tissue. New bone tissue forms as you grow. Joints of skeleton 1. Immovable 2. Movable Bone growth Example: Skull (sutures) Example: knee 5. Stores materials until body needs them A. hinge joint – forward/backward B. Ball & socket – large range of motion Example: shoulder allows little or no movement

Clarifying ?s Information Summary: The skeletal System Example: neck D. Gliding – bone slides over bone Bone care 1. Balanced diet Calcium & phosphorus Example: milk, whole grains, leafy green veggies, eggs, and meat Exercise and aerobic activities Examples: running, bicycling, basketball, skating, swimming, soccer, walking, and others Bone structure 1. Compact bone2. Spongy bone 3. Outer membrane4. Bone marrow 5. Canals6. Blood vessels C. Pivot – one bone rotates around another Example: ankle

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