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GD midterm Flashcards

1
Q

True of false

in a baby eyes and eyes develop 1st.

A

True

because of there proximity to the nerves

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2
Q

True of false

in a baby eyes and eyes develop 1st.

A

True

because of there proximity to the nerves pathways nearest to the brain

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3
Q

true of false

in adulthood the head is 1/4 the size of the body

A

False
1/8

the head is 1/4 the body length at birth

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4
Q

what is the geometric center of the skull

A

Sella turca

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5
Q

Do bones grow from universal apposition?

A

False they dont

in order for bone to grow needs fixed non-movable points.

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6
Q

what are the growth curves

A

Distance (absolute)

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7
Q

by what age is most of the brain/neurons developed

A

5 years of age

only thing that develops before is lymphoid tissue

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8
Q

tonsils/ lymphoid organs shrink after 12 yrs of age( max lymphoid maturity)

A

true

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9
Q

True or false

when is the accelarated rate of birth

A

Conception to 3 months

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10
Q

true or false

women experience circumpubertal growth spurt 1st

A

True

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11
Q

growth increments

A

the areas closer to the brain grows faster

mandible 3 catches up to maxilla 2 by ages 5-10

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12
Q

cleft palate only is more common in

A

Women

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13
Q

Cleft lips only is more common in

A

Men

also cleft lip&palate combination

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14
Q

at birth the head is about ____ the length of the whole body

A

1/4

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15
Q

geometric center of skull structures is

A

Sella turcia

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16
Q

differention

A

the modification of tissue or function during the course of development

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17
Q

Maturation

A

the ripening of already existing tissues organs of systems

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18
Q

Differential Growth

A

growth characterized by varying rates of change

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19
Q

Interstitial growth

A

growth with the tissue

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20
Q

Accretionary

A

increase in intercellular substance

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21
Q

multiplicative

A

increase in number of cells

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22
Q

Dimensional

A

increase in size of cells

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23
Q

growth of the skull and spinal cord are related to what growth curve

A

neural

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24
Q

what is the most accurate way to assess a patients age is

A

skeletal evaluation

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25
Q

when does the face develop

A

7 weeks post conception a recognizable face

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26
Q

the least cleating possible is

A

bifid uvula

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27
Q

growth center is

A

represented by a suture

compensatory to external forces

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28
Q

post natal facial growth only occurs in

A

Surfaces Sutures, synchondroses condyles

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29
Q

what is the major mechanism of calvaria growth

A

Appositional growth at cutaneous & meningeal surface

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30
Q

cranial base and adjacent fosse growth is characterized by

A

Cortical drift and growth at the syndrondroses depending on age of subject

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31
Q

synostosis

A

early closure of cranial suture

32
Q

the sphenoid-occipital synchondrosis grows

A

toward both occipital and sphenoid bone

33
Q

the velocity cure is also called

A

incremental curve

34
Q

sphenoid ethmoidal synchondrosis cease to grow at

A

7 years of age

35
Q

which bones of the brain case or only of membranous origin

A

Frontal, Pariental

36
Q

which bone is endochondral only

A

Ethmoid Bone

37
Q

which bones are mixed in origin

A

temporal , occipital, splendid

38
Q

when does heart start beating

A

week 4

39
Q

when do the 5 primodia of face develop

A

5 weeks pc

40
Q

what are the 5 primordial of the face

A 
eyes 
nasal pit
maxillary process
mandible arch
oral opening
41
Q

when is facial development complete

A

7 wks pc

42
Q

why is the condyle not a growth center

A 
2ndary cartilage
appositional growth not interstitial
lacks structural organization
cartilage implants dont grow
different effect on chem and hormonal agents
43
Q

bone spatial change is by 2 general processes

A

Cortical drift

Displacement

44
Q

Hemifacial Microsomia

A

No condylar growth on L side

45
Q

most common distribution of Cleft lip/ palate

A

cleft lip and palate

46
Q

Both the maxilla and mandible grow downward and forward

A

False mandible does grow outward and forward

47
Q

growth of mandible is

A

up and back

48
Q

mandibular displacement

A

down and forward

49
Q

what day does blastocyst form

A

8th day

50
Q

when does neural tube begin closing

A

21 day starts in middle

51
Q

neural crest ectoderm

A

responsible for carniofacial muscles and bone

52
Q

When does the cranifacial skeleton change shape

A

10wk it is ovoid shaped then changes squarish on week 40

53
Q

percent completion of facial

dimensions at birth

A

Depth: 30-45%
Height: 40-45%
widthe: 55-60%

54
Q

statue is divided into quarters

A

true

55
Q

somatotypes

A

Ectomorph-skinny like spider legs ECto
Mesomorph- Meso- mid sized
Endomorph-(endo always means body this is FAT)

56
Q

Ectomorph

A

11/2-11/2 -7

skinny tall lanky

57
Q

Mesomorph

A

11/2- 7 - 11/2

medium sized ideal size

58
Q

Endomorph

A

7-1-11/2

59
Q

Average individual

A

is a average balance between the 3 components

4-3.5-4

60
Q

C/L & palate are most common in what ethnicity

A

Asians followed by caucasians

It is the 2nd most common birth defect

61
Q

what direction are most unilateral complete clefts

A

Left side of mouth

62
Q

Cleft lip and palate are least likely seen in what ethnicity

A

black

63
Q

what week is embryonic disk formed

A

2 week

also ectoderm

64
Q

what is important about the 3rd week of development

A

Gastrulation & production of mesoderm
formation of notochord or head process
Hensens node
Primitive streak

65
Q

regions where mesoderm is not interposed between ectoderm and entoderm

A

become phargeal and cloacal membranes

66
Q

principal derivative of ectoderm is

A

nervous tissue / neural ectoderm

67
Q

percent distribution if C/L P types

A

L-25%
P=30%-chick mostly
L&P-45%

68
Q

obturator

A

appliance used to treat cleft of hard and soft palate

69
Q

direction of condylar growth

A

Horizontal V growth

condyles spread

70
Q

Thumb sucking habit must have what to cause a problem

A

Frequency
intensity
duration

71
Q

tongue thrusting habit may cause

A

Open bite

72
Q

aglossia

A

congenital defect resulting in partial development or complete absence of tongue

73
Q

hemifacial microsomia

A

is a condition in which the lower side of half one side of the face. is underdeveloped and does not grow normally,,,
always include maldevelopment of ear and the mandible

74
Q

the distance btw sella trice and nation is

A

anterior cranial base

75
Q

ossification centers in new born

A

lack of any secondary centers

absence of any centers on wrist

76
Q

3 types of interstitial growth

A

cell division
cell enlargement
Matrix elaboration

gd (3 decks)

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