Disorders of Bone Growth/Laws Flashcards
1
Q
Osteomalacia
A
- Adult form of Rickets
- Osteoid not adequately mineralized
- Newly formed Haversian Systems are weaker
- Due to inadequate Ca, pregnancy and lactation
2
Q
Osteoporosis
A
- Condition in which amount of bone matrix per unit volume is reduced
- Increased porosity
- Diaphyses’ compact bone becomes thinner
3
Q
Rickets
A
- Children
- Bone matrix is not calcified (weak bone)
- Vitamin D deficiency
4
Q
Osteopetrosis
A
Abnormally large amounts of bone matrix ; Brittle and easily fractured
5
Q
Wolff’s Law
A
The body will lay down bone where it needs it, to resist the forces that are imposed upon it ; The body will remove bone matrix where it does not need it
6
Q
Heuter-Volkmann Principle
A
Cartilage grows proportionally to the amount of force applied to it
