theories

Question 1

what are the theories of facial growth

Answer 1

1- bone growth under complete genetic control
2- cartilaginous growth is the primary determinant of carniofacial growth
3- functional matrix theory

Question 2

bone grow only under interinsic control T/F

Answer 2

True

Question 3

expansion force at the sutuers lead to _______

Answer 3

expansion of the bone

Question 4

______,_______, and _______ are gowth center

Answer 4

periosteium
suturers
cartilage

Question 5

what are the principles of the functional matrix theory

Answer 5

1- heredity and genes play no role in growth
2- growth of the face occurs in response to functional needs, mediated by the spft tissues
3- all tissues that form bone are merely growth sites.

Question 6

the extent to which this growth potential is realized is determined by intersinc factors T/F

Answer 6

False
extersinc

Question 7

what is the remodeling of facial growth

Answer 7

change size and shape of bone
adaptation to intersinc and extrinsic changes

Question 8

stress increase ______

Answer 8

bone density

Question 9

direction of stress can alter orientation and size of osteons T/F

Answer 9

True

Question 10

intersitial

Answer 10

inside the tissue
growth that occurs by combination of hyperplasia, hypertrophy, and secretion of extracellular matrix.
occurs at all point within tissue

Question 11

what are some examples of intersitial

Answer 11

all soft tissue
cartilage

Question 12

appositional ________

Answer 12

addition to surface

Question 13

examples of appositional are bony surfaces of cranial vault
and bony surfaces of maxilla and mandible T/F

Answer 13

True

Question 14

endochondral

Answer 14

bone growth within cartilage
ossification centers occur within cartilage
catilage is trnasformed into bone

Question 15

examples of endchondra; _________, and __________

Answer 15

chondrocranium: ethmoid, sphenoid and basiocciptal bones.
epiphyseal plate cartilage of long bones

Question 16

intramembranous, no intermediate formation of cartilage T/F

Answer 16

True

Question 17

examples of intramembranous

Answer 17

desmocranium: cranial vault (brain case), maxilla and mandible

Question 18

the formation of new bone from cartilaginous predecessor or direct bone formation within the mesenchyme

Answer 18

modeling

Question 19

surface remodeling _________
the result of bone removal in one area and bone addition in another

Answer 19

change in shape of bones

Question 20

site of growth is the location at which the grwoth occur T/F

Answer 20

True

Question 21

center of growth

Answer 21

is a location at which independent grwth occurs.

Question 22

allow for growth and displacement

Answer 22

sutuers

Question 23

______ carries nasomaxillary complex downward and forward

Answer 23

nasal septum