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NBDE > last minute > Flashcards

last minute Flashcards

1
Q

anti hbs antibody means

A

carrier

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2
Q

collapse of alveoli

A

atelectasis

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3
Q

two main regions of dermis

A

papillary layer -thin and less fibrous

reticular layer: thick and fibrous, continuous with hypodermis, more reticular fibers and fewer cells than papillary

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4
Q

subdermis is major site of

A 
fat deposition
primaryly areolar (loos )Ct
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5
Q

most sweat glands are

A

eccrine

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6
Q

primary function of cementum is to attach…

A

sharpeys fibers

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7
Q

cementum is _ than dentin
important in
1st layer of cementum deposited is. < This predominates at the _ of the root

A

softer
ortho
aceullar (deposited at DCJ)
coronal 2/3rd

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8
Q

(cementum/dentin) more closely resembles bone

thickest/thinnset at

A

cementum

thickest at tooth apex, thinnest at CEJ

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9
Q

formed in peripheral parts of mineralized dnetin inside walls of dentin tubules

A

peritubular

highly mineralied and little collagen

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10
Q

odontoblasts through predentin min. between tubules

dense collagen matrix

A

intertubular dnetin

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11
Q

outmost layer of primary dentin

first dentin formed, slightly less mineralied than other layers

A

mantle dentin

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12
Q

outlines pulp chamber and constitutes main part of dentin mass
more mineralized than

A

primary

secondary

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13
Q

each dentinal tubule contains

odontoblasts secrete organic components of dentin matrix—this mostly

A

cytoplasmic cell process (Tomes fiber) of an odontoblast

type I collagen

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14
Q

dead tracts may be caused by

A

caries, erosion, cavity prep, or odontoblastic crowding

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15
Q

accessory canals form when

A

hertwigs epithelial root sheath encounters blood vessel during root formation
root structure than forms around vessel

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16
Q

describe layer adjacent to odontoblast layer

A

cell free zone of weil

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17
Q

what passes from central pulp region across cel free zoen adn betwween odontoblasts, distal ends incorporated into matrix of the dentin layer

A

bundles of reticular (korff’s) fibers

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18
Q

plexus of raschkow

A

medial to cell rich zone. contains subodontoblastic plexus

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19
Q

predominant cell type of pulp

A

fibroblasts

plasma cells, lymphocytes, esodinphils, and other cell types common

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20
Q

enamel matrix secreted from each ameloblast from _

enamel matrix first formed in incisal/occlusal portion of the future crown near _

A

its tomes process-secretory surface of the ameloblast facing dentinoenamel junction (DEJ)
-the forming DEJ

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21
Q

in order for ameloblasts to form enamel, _ must be present

A

cells from the stratum intermedium

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22
Q

area at which calcification of tooth begins

A

DEJ

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23
Q

all cells found in the pulp

A

fibroblasts
odontoblasts
undifferentiated mesenchymal cells
lymphocytes, plasma cells, and eosinophils

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24
Q

pulp nerves, types (2)

A

autonomic and afferent sensory
sensory are myelinated
autonomics regulate blood flow in the capillary network

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25
Q

how does cementum differ from enamel

A

collagen,cementum has cellular components in the mature tissue

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26
Q

composed mostly of dentin and have dentinal tubules; may have an outer layer of predentin and often located adjacent to odontoblast cells

A

true pulp stones

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27
Q

concentric layer of calified material with no tubular structure

A

false pulp stones

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28
Q

aging and enamel permeability

A

perm reduced with aging

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29
Q

prochordal plate consists of

A

endoderm of roof of yolk sac and embryonic ectoderm

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30
Q

pyramids contain

A

upper motor neuron fibers only

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31
Q

large vein different from its artery

vein has…

A

more prominent tunica adventitia

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32
Q

submandibular ganglion associated with which nerve

A

lingual

33
Q

mandibular division of V and chorda tympani of VII found in what fossa

A

infratemporal

34
Q

which gland PURELY MUCUOUS

A

palatine

35
Q

throcic duct which mediastinum

A

posterior

36
Q

gnarled enamel most frequently found in …

A

cusps

37
Q

parakeratinized oral mucosa often found where?

A

attached gingiva

38
Q

gaba increases permeability to what ion

A

chloride

39
Q

maximum urine concentration most closely related to

A

length of loop of henle

40
Q

insulin increases activity of

A

PFK

41
Q

most endogenous cholesterol in liver usually converted to

A

cholic acid

42
Q

WHAT DO ELASTIN AND COLLAGEN have in common

A

1/3 glycine

43
Q

non collagenous protein BEST chracterizes dentin matrix

A

PHOSPHOPHORYN

44
Q

blocking hypothalamic hypophyseal venous portla system increases section of what?

A

PRL

45
Q

commonly produces positive heterophile ab test

ebv?
hsv1?
cmv?
parainfluenza?

A

ebv

46
Q

angioedema results from what

A

deficiency in C1 esterase inhibitor

47
Q

enamel tufts are found in _

represent _

A

*anomalies of crystallization w no clin. importance

fan shaped, hypocalcified structures projecting from DEJ into enamel proper

inner 1/3 of enamel

rep areas of less mineralization

48
Q

short dentinal tubules near the DEJ. odblasts that crossed BM before it mineralized into the DEJ

A

enamel spindles

49
Q

partially calcified vertical defects in enamel resembling cracks or fractures that traverse entire length of crown from surface to the DEJ.

narrow/longer than

A

enamel lamellae

_>narrower than enamel tufts

50
Q

optical phenomenon produced by changes in direction between adjacent groups of enamel rods.

seen most clearly in..

found in

A

hunter schreger bands

  • most clearly in longitudinal ground sections
  • found in inner 2/3
51
Q

permanent teeth move _ and _ when erupting

A

occlusally and facially

52
Q

bone lining the socket is referrerd as

A

bundle bone

53
Q

cortical plate is surface layers of _ bone supported by _

A

lamellar bone

compact haversian systems of variable thickness

54
Q

dentinogenesis-moves away from _ and toward _

A

DEJ and toward pulp

55
Q

dentinal tubules are _ shaped
due to _.
Curvature of tubules _ in root dnetin

A

S shaped; overcrowding of odontoblasts

curve decreases in root dentin

56
Q

when dead tracts become completely filled with calcified material

A

blind tracts

57
Q

new erupted tooth–membrane covering derived from…
aka what?

  1. organic matrix that binds epithelium
A

oral epithelium
Nasmyth’s membrane

  1. primary enamel cuticle
58
Q

uncomplicated healing of wound by secondary intention is most likely to show evidence of..

A

ulceration of epithelial surface

59
Q

longest incubation period

  • herpetic gingivostomatitis
  • measles
  • rabies
A

rabies

60
Q

role of lactobacilli in coronal caries

A

causes progression of existing lesions

61
Q

glioblastoma multiforme is the most common

A

astrocytoma

62
Q

associated with increased risk of breast cancer

  • fibroadenoma
  • estrogen def.
  • obesity
A

obesity

63
Q

microscopic lesion for rheumatoid arthritis is called

A

pannus

64
Q

upper compartment of the TMJ is that space between the …

A

disc and the articular fossa and eminence

65
Q

teeth are in a straight line in what segment of the dentition

A

mandibular posterior

66
Q

thickest section of the articular disc is the …

A

posterior border

67
Q

primary molar with transverse ridge, oblique ridge, and DL groove

A

maxillary second

68
Q

thickest section of the articular disc

A

posterior border

69
Q

crown of mandibular 2nd molar inclines

A

mesially and distally

70
Q

what of the following surface of permanent teeth is pit and fissure caries MOST likely to occur

A

lingual of maxillary 1st molars

71
Q

from occlusal, outline of 2nd mandibular premolar is…

A

pentagonal

72
Q

from facial view- CEJ MOST apical on crown of primary mandibular 1st molar on the

A

mesial 1/3rd

73
Q

where do root canals usually join the pulp chamber..

A

apical to the CEJ

74
Q

2nd pulp canal of mandibular 2nd PM mostly likely in what direction?

A

lingual

75
Q

primary mandibular 1st molar has what…

distal groove
oblique ridge
distal triangular fossa

A

distal triangular fossa

76
Q

show incremental nature of dentin apposition

run in right angle to dentinal tubule

A

incremental lines of von Ebner

77
Q

all teeth develop from 4 lobes except

A

permanent 1st molar

mandibular 2nd premolar (3 cusp type)

78
Q

distal fossa of the maxillary 1st opposes the

A

distal cusp of the mand 1st

79
Q

distofacial groove of the Man 1 M opposes the …

A

oblique ridge of max M1

NBDE (4 decks)

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