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Radiology > Quiz 2 > Flashcards

Quiz 2 Flashcards

0
Q

Radiopaque

A

The light/white portion of a radiograph; resists the passage of x-ray beam

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1
Q

Radiolucent

A

The dark/black portion of a radiograph; readily permits the passage of x-rays; lacks density

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2
Q

Cortical bone aka

A

Cribriform plate

Lamina dura

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3
Q

Cortical bone

A

Means outer layer, appears solid white on radio graphs

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4
Q

Cancellous bone

A

Means spongy bone, located between layers of cortical bone, less dense than cortical bone

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5
Q

Process

A

A marked prominence or projection of bone

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6
Q

Ridge

A

A linear prominence or projection of bone

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7
Q

Spine

A

A sharp thorn like projection of bone

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8
Q

Tubercle

A

A small bump or nodule

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9
Q

Tuberosity

A

A rounded prominence of bone

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10
Q

Canal

A

Tube like passageway through bone that contains nerves and blood vessels

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11
Q

Foramen

A

An opening or hole in bone that permits passage of nerves and blood vessels

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12
Q

Fossa

A

A broad, shallow, scooped out , or depressed area of bone

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13
Q

Sinus

A

A hollow space or cavity or recess in bone

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14
Q

Septum

A

A bony wall or partition that divides two spaces or cavities; appears radiopaque

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15
Q

Suture

A

An immovable joint that represents a line of union between two adjoining bones of the skull

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16
Q

Ala tragus line

A

Line extending from the tragus of the ear to the ala of the nose; machine lines parallel to it

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17
Q

Intra oral films

A

Mid sagittal plane perpendicular to the floor; occlusal plane parallel to the floor

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18
Q

Extra oral films

A

Ala tragus line parallel to predetermined spot on machine

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19
Q

Enamel

A

Radiopaque, most dense structure, thin layer that covers the teeth

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20
Q

Dentin

A

Internal portion of tooth-radiopaque less dense than enamel

21
Q

Cementum

A

Unable to see (less dense than dentin)

22
Q

Pulp

A

In center of tooth; Radiolucent; composed of nerves and blood vessels; soft tissue in center of tooth

23
Q

Lamina dura

A

Made of cortical bone (radiopaque) immediately surrounds the root (thin white line)

24
Q

Cancellous bone

A

“Arranged like a lattice; spongy bone; less radiopaque than lamina dura

25
Q

Cortical bone

A

Compact or dense form of bone, lines the outside layers of maxillary and mandible arches

26
Q

Alveolar bone

A

Radiopaque, composed of cortical and cancellous bone, how teeth are maintained in the jaw

27
Q

Incisive canal foramen

A

Appears as a small, ovoid Radiolucent area between the roots of maxillary central incisors

28
Q

Median palatine suture

A

Thin Radiolucent line extending posteriorly through the midline I the palate

29
Q

Nasal fossa

A

Empty space above the transverse radiopaque band across the palate

30
Q

Nasal septum

A

Radiopaque vertical line that divides the nasal cavity into left and right sides. May superimpose over the median palatal suture

31
Q

Maxillary sinus

A

Radiolucent air space above the apices of the premolar and molars

32
Q

Inverted Y

A

Intersection of maxillary sinus and nasal cavity

33
Q

Malar bone; zygomatic bone

A

Appears as a diffuse radiopaque band extending posteriorly from zygomatic process of the maxilla

34
Q

Zygomatic process

A

U shaped radiopacity located superior to the maxillary first molar region; superimposed over the molar root tips

35
Q

Maxillary tuberosity

A

Radiopaque bulge distal to third molar region

36
Q

Hamular process

A

Appears as a radiopaque hooklike projection posterior to maxillary tuberosity

37
Q

Coronoid process

A

Triangle-shaped radiopacity shows up only on maxillary molar periapical images

38
Q

Lingual foramen

A

Little Radiolucent dot underneath mandibular incisors

39
Q

Genial tubercles

A

Radiopaque, surrounds the lingual foramen

40
Q

Mental ridge

A

Linear prominence of cortical bone on the external surface of the anterior portion of the mandible

41
Q

Inferior border of the mandible

A

Cortical bone

42
Q

Lingual foramen

A

Radiolucent between the apices of the central incisors

43
Q

Genial tubercles

A

Tiny bumps of bone that surrounds the lingual foramen

44
Q

Mental ridge

A

Thick band that extends from premolar region to incisor region

45
Q

Mental foramen

A

Small, ovoid or round Radiolucent area located in apical region of mandibular premolars

46
Q

Internal oblique ridge

A

Radiopaque band that extends distal from last molar

47
Q

External oblique ridge

A

Radiopaque band extending straight down

48
Q

Mylohyoid ridge

A

Radiopaque band in the mandibular molar region

49
Q

Mandibular canal

A

Outlined by two thin radiopaque lines that represent the cortical walls of the canal

Radiology (9 decks)

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