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Dental assisting > embryology and histology > Flashcards

embryology and histology Flashcards

1
Q

study of prental developement

A

embryology

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2
Q

study of the structure and function of tissues

A

histology

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3
Q

begings at the start of pregnancy and continues to birth

A

parental development

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4
Q

union of male sperm and the ovum of the female

A

conception

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5
Q

succedanous

A

permanent teeth with primary predecessors

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6
Q

periodontium

A

tissues that support the teeth in the alveolar bone

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7
Q

ameloblasts

A

enamal forming cells

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8
Q

odontoblasts

A

dentin forming cells

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9
Q

cementoblasts

A

cementum forming cells

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10
Q

cementoclasts

A

cells that reabsorb cementum

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11
Q

osteoclasts

A

cells that reabsorb bone

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12
Q

the normal process of shedding primary is

A

exfoliation

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13
Q

stratified squamous epithelium

A

made up of oral mucosa

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14
Q

masticatory mucosa

A

oral mucosa that covers the hard palate, dorsum of the tongue and gingiva

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15
Q

preimplantation period

A

first period of prenatal development

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16
Q

what prenatal development is the most critical

A

embryonic period

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17
Q

embryonic layer that differentiates into cartilage , bones and muscles is

A

mesoderm

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18
Q

clinical crown

A

portion of the tooth that is visible in the mouth

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19
Q

deposition

A

process of adding a new bone

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20
Q

resorption

A

process of eliminating existing bone

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21
Q

largest mineral component in enamel

A

calcium

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22
Q

endoderm

A

inner layer

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23
Q

what layer is ectoderm

A

outer layer

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24
Q

mesoderm

A

middle layer

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25
Q

forms bones, muscles and nerves of the face. lower lip, facial development between 4th - 8th week

A

first branchial arch

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26
Q

what branch forms the styloid process, muscle of facial expression, part of the hyoid bone, side and front of the neck

A

second branchial arch (hyoid arch)

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27
Q

what arch forms body of the hyoid and posterior of tongue

A

third branchial arch

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28
Q

forms structure of the lower throat, thyroid cartilage, muscle, and nerves of the pharynx and larynx

A

fourth, fifth, sixth branchial arch

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29
Q

primary palate

A

the shelf that separates the oral and nasal cavities

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30
Q

secondary palate

A

the final palate formed during embryonic development will extend to form soft palate

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31
Q

teratogens

A

environmental influences eg; chemicals,drug, radiation

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32
Q

odontogenesis

A

process of tooth formation

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33
Q

bud stage is also known as

A

initiation

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34
Q

cap stage is also known as

A

proliferation

35
Q

bell stage is known as

A

histodifferentiation & morphodifferentiation

36
Q

dental lamina

A

thickened band of oral epithelium

37
Q

ameloblasts

A

enamel forming cells

38
Q

odontoblasts

A

dentin forming cells

39
Q

cementoblasts

A

cells that form cementum

40
Q

fissure

A

grooves on biting surfaces

41
Q

pit

A

enamel defect, small pinpoint hole

42
Q

eruption

A

movement of the tooth into its functional position in the oral cavity

43
Q

primate spaces

A

spaces between primary teeth

44
Q

where is the enamel LOCATED

A

enamel organ

45
Q

where is dentin located

A

dental papilla

46
Q

where is the Cementum LOCATED

A

dental sac

47
Q

what layer is enamel from

A

ectoderm layer

48
Q

what layer is dentin from

A

mesoderm

49
Q

what layer is cementum from

A

mesoderm

50
Q

what is the hardest material in the body

A

enamel

51
Q

whats formed from branchial arch

A

mandibular arch, anterior alveolar process, muscle of mastication

52
Q

hunter schreger bands

A

dark and light bands in the enamel

53
Q

primary dentin

A

formed before eruption of the tooth

54
Q

secondary dentin

A

forms after the eruption of the tooth

55
Q

tertiary dentin

A

formed in response to irritation

56
Q

extension of bone from mandible and maxilla. Supports teeth in a functional position. Osteoblasts form this bone

A

alveolar process

57
Q

the dense outer covering of the spongey bone. The central part of the alveolar process. Provides muscle attachment

A

cortical plate

58
Q

the highest point of the alveolar ridge. Fused with cortical plates on facial and lingual sides

A

alveolar crest

59
Q

interdental septum

A

between two teeth

60
Q

interradicular septum

A

roots and one tooth

61
Q

periodontal fiber group

A

supports the tooth in the socket

62
Q

transseptal fiber group

A

supports between teeth

63
Q

what is gingival fiber group

A

supports gingiva that surrounds tooth

64
Q

apical fibers

A

prevents tipping, protects blood, lymph and nerve supplies. found around apex

65
Q

extend from cervical cementum into gingiva

A

dentogingival fibers

66
Q

dentin tubules

A

how u feel the sensation

67
Q

extend from alveolar crest into gingiva

A

alveolar fibers

68
Q

lining mucosa

A

cover inside of cheeks, lips, soft palate

69
Q

masticatory mucosa

A

covers attached gingiva, hard palate dorsum of tongue

70
Q

speciallized mucosa

A

dorsal of tongue, sensations of taste

71
Q

sulcus

A

space between the tooth and gum

72
Q

epithelial attachment (junctional epithelium)

A

tissue at the base of the sulcus where the gingiva attaches to the tooth

73
Q

Fordyce’s spots

A

small, yellowish elevations that may be on buccal mucosa

74
Q

linea alba

A

a white ridge of raised tissue extending horizontally at where the max and mand teeth come together

75
Q

ragae

A

horizontal lines on hard palate

76
Q

labial commissure

A

angles of the mouth

77
Q

vermillion border

A

red part of your lip (edges)

78
Q

philtrum

A

space between nose and lips

79
Q

osteoclasts vs osteoblasts

A

clasts resorb bone , blasts form bone

80
Q

horizontal fibers

A

prevents lateral movements

81
Q

oblique fibers

A

upward direction, resist forces on long axis

82
Q

interradicular fiber

A

found in multi-rooted teeth , enchancea tipping and twisting resistance

83
Q

vestibule

A

space between the teeth and inner mucosal lining of the lips and cheeks

84
Q

oral cavity proper

A

space on the tongue side within the upper and lower dental arches

Dental assisting (57 decks)

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