Flashcards in Unit 3: Notes 2 Deck (20)
what happens to long bones during infancy, childhood, and adolescence?
The long bones grow in length and thickness
what happens to long bones between the ages of 18 to 25?
bone growth comes to an end and bone replaces all cartilage
what is bone remodeling?
The ongoing replacement of old bone tissue with new
what does bone remodeling remove?
what affects bone remodeling?
exercise, sedentary lifestyle, diet
what two factors are involved in the bone remodeling process?
bone resorption and bone deposition
what is bone resorption?
The removal of minerals and collagen from bone by osteoclasts
what is bone deposition?
The addition of minerals in collagen from bone by osteoblasts
what will happen if there is not a balance between the osteoclasts and osteoblasts?
conditions such as spurs, osteoporosis and rickets can result
what is a compound fracture
broken bone breaks through the skin
name the four things bone repair involves
1. fracture hematoma formation
2. fibrocartilage callus bridge gap between bones
3. bony callus formation by osteoblasts
4. bone remodeling by osteoclasts and osteoblasts
what does fracture treatment depend on?
1. location or fracture type and its characteristics
2. The persons age
3. The persons activity level
4. bone quality
what happens to the bone during stress?
bone become stronger due to increased deposits of minerals and collagen fibers
what happens to the bone when no stress is applied?
bone resorption outpaces bone formation and bone becomes weaker
why are athletes bones thicker?
what's are the divisions of the skeletal system?
axial and appendicular
1. bones of the skull (cranium and facial bones)
2. bony thorax (ribs and sternum)
3. vertebral column
1. bones of the shoulder (pectoral girdle)
2. bones of the pelvic girdle
3. upper limbs
4. lower limbs
what is open reduction and internal fixation?
fixes a broken bone using metal screws, pins, plates, or rides to hold bone in place