Transcript Homeostatic Imbalances of Bones

Homeostatic Imbalances of
the Skeletal System
Osteoarthritis
Intro video
I. Bone Fractures
Femur Fracture
Radius fracture and dislocation of ulna
Humerus Fracture
Fracture of Femur
Fracture of Humerus
Skull Fracture
Fracture of the Radius
II. Arthritis
A. Osteoarthritis - video link
- Chronic
regeneration of
the cartilage due
to wear and tear
Osteoarthritis:
- often results in growth of extra bone
tissue= bone spurs
Osteoarthritis of
the hands
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
Rheumatoid Arthritis
III. Osteoporosis - see animation
A. Bone thinning disease that can lead to
fractures, especially the spine and head of femur
B.
Risk factors:
1) poor diet calcium, vit. D
2) lack of exercise
3) smoking
4) menopause
5) small build
6) genetics
IV. Rickets
-Bones fail to calcify
-Due to lack of calcium and/or vitamin D
Soft bones lead
to bowed legs
Rickets Family