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last minute Flashcards

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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
how does cementum differ from enamel
collagen,cementum has cellular components in the mature tissue
26
composed mostly of dentin and have dentinal tubules; may have an outer layer of predentin and often located adjacent to odontoblast cells
true pulp stones
27
concentric layer of calified material with no tubular structure
false pulp stones
28
aging and enamel permeability
perm reduced with aging
29
prochordal plate consists of
endoderm of roof of yolk sac and embryonic ectoderm
30
pyramids contain
upper motor neuron fibers only
31
large vein different from its artery | vein has...
more prominent tunica adventitia
32
submandibular ganglion associated with which nerve
lingual
33
mandibular division of V and chorda tympani of VII found in what fossa
infratemporal
34
which gland PURELY MUCUOUS
palatine
35
throcic duct which mediastinum
posterior
36
gnarled enamel most frequently found in ...
cusps
37
parakeratinized oral mucosa often found where?
attached gingiva
38
gaba increases permeability to what ion
chloride
39
maximum urine concentration most closely related to
length of loop of henle
40
insulin increases activity of
PFK
41
most endogenous cholesterol in liver usually converted to
cholic acid
42
WHAT DO ELASTIN AND COLLAGEN have in common
1/3 glycine
43
non collagenous protein BEST chracterizes dentin matrix
PHOSPHOPHORYN
44
blocking hypothalamic hypophyseal venous portla system increases section of what?
PRL
45
commonly produces positive heterophile ab test ebv? hsv1? cmv? parainfluenza?
ebv
46
angioedema results from what
deficiency in C1 esterase inhibitor
47
enamel tufts are found in _ | represent _
*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
short dentinal tubules near the DEJ. odblasts that crossed BM before it mineralized into the DEJ
enamel spindles
49
partially calcified vertical defects in enamel resembling cracks or fractures that traverse entire length of crown from surface to the DEJ. narrow/longer than
enamel lamellae _>narrower than enamel tufts
50
optical phenomenon produced by changes in direction between adjacent groups of enamel rods. seen most clearly in.. found in
hunter schreger bands - most clearly in longitudinal ground sections - found in inner 2/3
51
permanent teeth move _ and _ when erupting
occlusally and facially
52
bone lining the socket is referrerd as
bundle bone
53
cortical plate is surface layers of _ bone supported by _
lamellar bone | compact haversian systems of variable thickness
54
dentinogenesis-moves away from _ and toward _
DEJ and toward pulp
55
dentinal tubules are _ shaped due to _. Curvature of tubules _ in root dnetin
S shaped; overcrowding of odontoblasts curve decreases in root dentin
56
when dead tracts become completely filled with calcified material
blind tracts
57
new erupted tooth--membrane covering derived from... aka what? 2. organic matrix that binds epithelium
oral epithelium Nasmyth's membrane 2. primary enamel cuticle
58
uncomplicated healing of wound by secondary intention is most likely to show evidence of..
ulceration of epithelial surface
59
longest incubation period - herpetic gingivostomatitis - measles - rabies
rabies
60
role of lactobacilli in coronal caries
causes progression of existing lesions
61
glioblastoma multiforme is the most common
astrocytoma
62
associated with increased risk of breast cancer - fibroadenoma - estrogen def. - obesity
obesity
63
microscopic lesion for rheumatoid arthritis is called
pannus
64
upper compartment of the TMJ is that space between the ...
disc and the articular fossa and eminence
65
teeth are in a straight line in what segment of the dentition
mandibular posterior
66
thickest section of the articular disc is the ...
posterior border
67
primary molar with transverse ridge, oblique ridge, and DL groove
maxillary second
68
thickest section of the articular disc
posterior border
69
crown of mandibular 2nd molar inclines
mesially and distally
70
what of the following surface of permanent teeth is pit and fissure caries MOST likely to occur
lingual of maxillary 1st molars
71
from occlusal, outline of 2nd mandibular premolar is...
pentagonal
72
from facial view- CEJ MOST apical on crown of primary mandibular 1st molar on the
mesial 1/3rd
73
where do root canals usually join the pulp chamber..
apical to the CEJ
74
2nd pulp canal of mandibular 2nd PM mostly likely in what direction?
lingual
75
primary mandibular 1st molar has what... distal groove oblique ridge distal triangular fossa
distal triangular fossa
76
show incremental nature of dentin apposition run in right angle to dentinal tubule
incremental lines of von Ebner
77
all teeth develop from 4 lobes except
permanent 1st molar | mandibular 2nd premolar (3 cusp type)
78
distal fossa of the maxillary 1st opposes the
distal cusp of the mand 1st
79
distofacial groove of the Man 1 M opposes the ...
oblique ridge of max M1

NBDE (4 decks)

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