Homeostatic Imbalances of the Skeletal System

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Homeostatic Imbalances of the Skeletal
System
Osteoarthritis
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I. Bone Fractures
Intro video
Femur Fracture
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Radius fracture and dislocation of ulna
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Humerus Fracture
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Fracture of Femur
Fracture of Humerus
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Skull Fracture
Fracture of the Radius
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II. Arthritis
A. Osteoarthritis - video link
- Chronic regeneration of the cartilage due to
wear and tear
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Osteoarthritis
- often results in growth of extra bone
tissue bone spurs
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Osteoarthritis of the hands
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B. Rheumatoid Arthritis
video
1) Autoimmune disease- immune system destroys
cartilage
2) Scar tissue forms which ossifies, fusing bones
3) Can cause deformity and crippling
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Rheumatoid Arthritis
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III. Osteoporosis - see animation
A. Bone thinning disease that can lead to
fractures, especially the spine and head of femur

• Risk factors
• 1) poor diet - calcium, vit. D
• 2) lack of exercise
• 3) smoking
• 4) menopause
• 5) small build
• 6) genetics

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IV. Rickets
-Bones fail to calcify -Due to lack of calcium
and/or vitamin D
Soft bones lead to bowed legs
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Rickets Family