Bones and ligaments

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Bones and ligaments
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Bone Structure

• Compact bone hard outer surface
• Spongy bone Swiss cheese like matrix interior.
• Bone marrow source of red and white blood cells
• Haversian Canals blood vessel canals through
  compact bone

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Haversian Canal
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3 types of cells

• Osteoblast bone forming cell
• Osteocyte mature bone cell
• Osteoclast bone removing cells

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Joints 4 types

• Ball and socket all directions
• Shoulder, hips
• Pivot joints twist around
• Arm, vertebrae
• Hinge joints lever or hinge action
• knees, elbow, fingers, toes
• Gliding slide past one another
• Wrist, ankle

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Ligaments

• Connect bone to bone (joints)

LIGAMENT
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osteoporosis

• Disease of the bone, causes of which are largely
  unknown.
• Mineral deficiencies promote disease, especially
  Calcium.
• Decrease in bone density
• Predominantly older women
• Prevention Get plenty of Calcium at a young
  age, exercise helps build bone strength