Chapter 6 Part 2 Flashcards Preview

Anatomy > Chapter 6 Part 2 > Flashcards

Flashcards in Chapter 6 Part 2 Deck (30):
1

-zone of resting cartilage; anchors plate to epiphysis -zone of proliferating cartliage -hypertrophic cartliage; chondrocytes enlarge -zone of calcified cartliage is nearest diaphysis ; bone replaces cartliage

4 zones of epiphyseal plate

2

Deposits bone on outter surface increasing thickness

Appositional growth

3

Requires a balance between the activity of osteoblasts and osteoclasts

Bone homeostasis

4

Osteoblast Activity is greater then osteoclast activity

Spurs

5

Osteoclast activity is greater than osteoblast activity

Osteoporosis

6

Minerals, vitamin C and D, Sex hormones and weight bearing excercises

Factors affecting bone growth

7

Stimulates collegen synthesis lincrwsing tensile strength

Vitamin C

8

Absorbs calcium deficiency results in -rickets (children) and (adults) osteomalacia

Vitamin D

9

Stimulate osteoblast activity causing "growth spurts"

Sex hormones

10

Increase bone density

Weight bearing excercises

11

Bone protrude through skin

Open (compound) fracture

12

Bone does not break skin

Closed (simple) fracture

13

One side breaks other side bends; only occurs in children

Green stick partial fracture

14

Fractured bone driven into another

Impacted fracture

15

Distal fibula fractured from severely everting foot

Potts fracture

16

Distal radius fractured hyperextending wrist

Colles fracture

17

Fracture hematoma fibrocartilaginous (soft) callus, bony (hard) callus, bone remodeling

Bone fracture repair 4 steps

18

Blood clot formed; phagocytes and osteoclasts begin removing damaged tissue

Fracture hematoma

19

Chondroblasts form fibrocartilage that bridge broken ends of bone

Fibrocartilaginous (soft) callus

20

Osteoblasts form bone replacing cartliage

Bony (hard) callus

21

Bind phase bone continues to remodel throughout a persons lifetime

Bone remodeling

22

Within limits mechanical stresses stregethen bone tissue by increasing deposition of bone matrix

Effects of excercise on bone

23

Sex hormones decline osteoporosis demineralization, brittleness

Aging and bone tissue

24

In females afte menopause casing higher incidene rate of osteoporosis

Sex hormone decline (aging)

25

Interstitial growth in length adds bone to diapiphyseal side of plate -at age 18-21 plate replaced by epiphyseal line

Epiphyseal plate

26

Osteoclast resorption outpaces osteoblast deposition

Osteoporosis (aging)

27

Results from the loss of salts decreasing bone mass

Demineralization (aging)

28

Decreased protein formation

Brittleness (aging)

29

Bone cancer; most often occurs in teenagers during growth spurt

Osteogenic sarcoma

30

Bone infection, usually caused by saphuloccus infection

Osteomyelitis