Chapter 6 Part 2

Question 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

Answer 1

4 zones of epiphyseal plate

Question 2

Deposits bone on outter surface increasing thickness

Answer 2

Appositional growth

Question 3

Requires a balance between the activity of osteoblasts and osteoclasts

Answer 3

Bone homeostasis

Question 4

Osteoblast Activity is greater then osteoclast activity

Answer 4

Spurs

Question 5

Osteoclast activity is greater than osteoblast activity

Answer 5

Osteoporosis

Question 6

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

Answer 6

Factors affecting bone growth

Question 7

Stimulates collegen synthesis lincrwsing tensile strength

Answer 7

Vitamin C

Question 8

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

Answer 8

Vitamin D

Question 9

Stimulate osteoblast activity causing “growth spurts”

Answer 9

Sex hormones

Question 10

Increase bone density

Answer 10

Weight bearing excercises

Question 11

Bone protrude through skin

Answer 11

Open (compound) fracture

Question 12

Bone does not break skin

Answer 12

Closed (simple) fracture

Question 13

One side breaks other side bends; only occurs in children

Answer 13

Green stick partial fracture

Question 14

Fractured bone driven into another

Answer 14

Impacted fracture

Question 15

Distal fibula fractured from severely everting foot

Answer 15

Potts fracture

Question 16

Distal radius fractured hyperextending wrist

Answer 16

Colles fracture

Question 17

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

Answer 17

Bone fracture repair 4 steps

Question 18

Blood clot formed; phagocytes and osteoclasts begin removing damaged tissue

Answer 18

Fracture hematoma

Question 19

Chondroblasts form fibrocartilage that bridge broken ends of bone

Answer 19

Fibrocartilaginous (soft) callus

Question 20

Osteoblasts form bone replacing cartliage

Answer 20

Bony (hard) callus

Question 21

Bind phase bone continues to remodel throughout a persons lifetime

Answer 21

Bone remodeling

Question 22

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

Answer 22

Effects of excercise on bone

Question 23

Sex hormones decline osteoporosis demineralization, brittleness

Answer 23

Aging and bone tissue

Question 24

In females afte menopause casing higher incidene rate of osteoporosis

Answer 24

Sex hormone decline (aging)

Question 25

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

Answer 25

Epiphyseal plate

Question 26

Osteoclast resorption outpaces osteoblast deposition

Answer 26

Osteoporosis (aging)

Question 27

Results from the loss of salts decreasing bone mass

Answer 27

Demineralization (aging)

Question 28

Decreased protein formation

Answer 28

Brittleness (aging)

Question 29

Bone cancer; most often occurs in teenagers during growth spurt

Answer 29

Osteogenic sarcoma

Question 30

Bone infection, usually caused by saphuloccus infection

Answer 30

Osteomyelitis