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The Skeletal System
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The skeleton has five major functions: Shape and support Movement
Protection of internal organs Production of blood cells Storage of vitamins and minerals
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The backbone or vertebral column is the center of the skeleton.
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The backbone is made up of 26 small bones called vertebrae.
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Parts of the Bone Compact Bone Spongy Bone Bone Marrow Outer Membrane (Periosteum)
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The spaces in bone contain a soft connective tissue called marrow
The spaces in bone contain a soft connective tissue called marrow. The job of the bone marrow is to make blood cells.
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Cartilage is a connective tissue that is more flexible than bone.
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A joint is a place in the body where two bones come together.
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Immovable joints connect bones in a way that allow little or no movement.
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Moveable joints allow the body to make a wide range of movement.
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There are 4 types of moveable joints:
Ball-and-socket Hinge Gliding Pivot
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The bones in movable joints are held together by a strong connective tissue called ligaments.
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31. Osteoporosis is a condition in which the body’s bones become weak and break easily.
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