Musculoskeletal Flashcards
Osteocytes
Mature bone cells
Osteoblasts
produce cells
Osteoclasts
resorption of bone
Complete Fracture
Bone broken, forming separate pieces
Incomplete fracture
bone only partially broken
Open(compound) fracture
Skin broken
Closed Fracture
skin not broken
Pathologic fracture
results from weakness in bone structure; occurs w/little stress
Stress fracture
(fatigue fractures) result from repeated excessive stress
Process of healing bone
- Hematomia-fibrin network formed.
- Phagocytic cells remove debris
- Fibroblasts lay down new collagen fibers
- Chondroblasts form new cartilage
- Osteoblasts generate new bone
- Procallus is replaced by bony callus
- Remodleling of bone w/return to use
Compartment syndrome
increased pressure of fluid w/in fascia compresses the nerves and blood vessels causing severe pain and ischemia or necrosis of muscle
Sprain
tear in a ligament
Strain
a tear in a tendon
Avulsion
ligaments or tendons completely separated from bony attachments
Osteoporosis-definition
decrease in bone mass and density.