Unit 3: Notes 2 Flashcards Preview

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Flashcards in Unit 3: Notes 2 Deck (20)
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1

what happens to long bones during infancy, childhood, and adolescence?

The long bones grow in length and thickness

2

what happens to long bones between the ages of 18 to 25?

bone growth comes to an end and bone replaces all cartilage

3

what is bone remodeling?

The ongoing replacement of old bone tissue with new

4

what does bone remodeling remove?

injured bone

5

what affects bone remodeling?

exercise, sedentary lifestyle, diet

6

what two factors are involved in the bone remodeling process?

bone resorption and bone deposition

7

what is bone resorption?

The removal of minerals and collagen from bone by osteoclasts

8

what is bone deposition?

The addition of minerals in collagen from bone by osteoblasts

9

what will happen if there is not a balance between the osteoclasts and osteoblasts?

conditions such as spurs, osteoporosis and rickets can result

10

what is a compound fracture

broken bone breaks through the skin

11

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

12

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

13

what happens to the bone during stress?

bone become stronger due to increased deposits of minerals and collagen fibers

14

what happens to the bone when no stress is applied?

bone resorption outpaces bone formation and bone becomes weaker

15

why are athletes bones thicker?

repetitive stress

16

what's are the divisions of the skeletal system?

axial and appendicular

17

describe axial

1. bones of the skull (cranium and facial bones)
2. bony thorax (ribs and sternum)
3. vertebral column

18

describe appendicular

1. bones of the shoulder (pectoral girdle)
2. bones of the pelvic girdle
3. upper limbs
4. lower limbs

19

what is open reduction and internal fixation?

fixes a broken bone using metal screws, pins, plates, or rides to hold bone in place

20

what can bones tell us about the deceased?

how long they have been deceased, general health, race, gender, cause of death, height, diet, age, giving birth