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Radiology > Module 14 > Flashcards

Module 14 Flashcards

1
Q

Recognition of normal landmarks on radiographs enables the clinician to?

A

Mount and Interpret images

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2
Q

What are the 2 types of bone in the human body

A

Cortical

Cancellous

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3
Q

Cortical (_____) means?

A

Compact bone

outer layer

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4
Q

Cortical bone is ______ and _____ passage of x-rays wh

A

dense

resists

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5
Q

Cortical bone appears ______ on a dental image

A

radiopaque (white)

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6
Q

Cancellous bone is the ___, ___ bone located between two layers of cortical bone

A

soft

spongy

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7
Q

Cancellous bone appears predominantly ______ on x-rays

A

radiolucent (black/gray)

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8
Q

Prominences of bone are composed of ___ bone and appear _____

A

dense

radiopaque

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9
Q

A Process is a marked __ or __ of bone

ex:

A

prominence

projection

coronoid process

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10
Q

A Ridge is a ___ prominence/projection

ex:

A

linear

internal oblique ridge

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11
Q

A Spine is a _, ___ projection

ex:

A

sharp

thornlike

anterior nasal spine

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12
Q

A turbercle is a small ____ or ____

ex:

A

bump

nodule

genial tubercules

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13
Q

A Tuberosity is a _____ prominence

ex:

A

rounded

Maxillary tuberosity

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14
Q

Spaces and Depressions in bone appear ____ due to?

A

radiolucent

not resisting x-rays penetration

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15
Q

A Canal is a ___ passageway that contians ____

ex:

A

tubelike

nerves/blood vessels

mandibular canal

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16
Q

A Foramen is a ___ in bone

ex:

A

hole

Mental/Lingual Foramen

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17
Q

A Fossa is a __, _____ _____area of bone

ex:

A

broad

shallow depresssed

submandibular fossa

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18
Q

A Sinus is a ___ space in bone

ex:

A

hollow

maxillary sinus

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19
Q

A Septum is a bony ___ that does what?

A

wall

divides two spaces/cavities

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20
Q

A septum appears ____

ex:

A

radiopaque

nasal septum

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21
Q

A Suture is an ______ _____ and is found in the ____

A

immovable joint

skull

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22
Q

A suture appears as a thin _____ line

ex:

A

radiolucent

palatine suture of maxilla

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23
Q

The upper jaw is composed of ______

A

two paired maxillae bones

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24
Q

The maxilla is described as the architectural?

A

corner stone of face

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25
Q

The Maxilla forms what 3 things

A

floor of orbit of eyes

sides and floor of nasal cavities

hard palate

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26
Q

What does Pneumatization mean?

A

When the floor of the sinus collapses in where a tooth is missing or has been removed.

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27
Q

The incisive foramen is also known as?

A

nasopalatine foramen

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28
Q

The incisive foramen is a ___ in bone located at the _____ of the ant. portion of the _____ directly ____ to the MX ______?

A

hole

midline

hard palate

post.

incisors

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29
Q

The incisive foramen is seen on an x-ray between the _____ of MX ______

A

roots

central incisors

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30
Q

What is the immovable joint between the 2 palatine processes of the maxilla

A

Median Palatal Suture

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31
Q

The Median Palatal Suture appears as a thin ____ line between MX _____

A

radiolucent

centrals

32
Q

The median palatal suture becomes ___ with age

A

less distinct

33
Q

What is found just inferior and medial to the infraorbital foarmen between MX canine and lateral incisors

A

Lateral Fossa

34
Q

The lateral fossa is also called the?

A

Canine and incisive fossa

35
Q

The Lateral Fossa appears ____ on x-rays

A

radiolucent

36
Q

What anatomy is only visible with a MX occlusal film

A

Nasal Cavity or (Fossa)

Nasal Septum

Nasal Conchea

Anterior Nasal Spine

37
Q

The Nasal Cavity is also called the ?

A

Nasal Fossa

38
Q

The Nasal Cavity is __ shaped and locates __ to the maxilla

A

pear

superior

39
Q

The Nasal Cavity appears as a large ___ area superior to the MX _____

A

radiolucent

incisors

40
Q

What is the vertical bony wall that divides the nasal cavity left and right

A

nasal septum

41
Q

The nasal septum appears as a _____, ___ partition and

can be superimposed over the?

A

Vertical

Radiopaque

Median palatal Suture

42
Q

The floor of the nasal cavity is composed of ___ bone and defines the ____ border of the nasal cavity

A

dense cortical

inferior

43
Q

The floor of the nasal cavity appears as a dense ______ band of bone superior to the _____

A

radiopaque

MX incisors

44
Q

What is the sharp projections of the maxilla located at the inferior portion of the nasal cavity

A

nasal spine

45
Q

The nasal spine appears as a ______ shape ___ area at teh intersection of the floor of the nasal cavity and the nasal septum

A

V

radiopaque

46
Q

What are the wafer-thin, curved plates of bones extending from the lateral walls of the nasal cavity

A

Inferior Nasal Conchae

47
Q

The Inferior Nasal Conchea are ______ shaped and appear as a ____ _____ mass or projection within the nasal cavity

A

Shell/Scroll

Diffuse Radiopaque

48
Q

The Maxillary Sinuses are located Superior to Maxillary ____ and ____ teeth

A

premolar

molar

49
Q

The floor of the maxillary sinus is composed of dense _____ bone and appears as a ____ line

A

cortical

radiopaque

50
Q

What are the parts that supply maxillary teeth and interdental areas with blood?

A

Nutrient Canals

51
Q

Nutrient Canals appear as ___ ____ bands surrounded by two thin ____ lines

A

narrow

radiolucent

radiopaque

52
Q

What is the Inverted Y

A

intersection of the maxillary sinus and nasal cavity

53
Q

The inverted Y appears as a ____ ____ Y

and is found superior to what?

A

radiopaque

upside-down

MX canine

54
Q

What appears as a radiopaque bulge distal to the 3rd/2nd molar region on the Maxillary arch

A

Maxillary Tuberosity

55
Q

What appears as a hooklike projection posterior to the Maxillary tuberosity region

A

Hamulus

56
Q

What appears as a J or U shaped radiopacity above the 1st molar of the Maxillary Arch

A

Zygomatic Process of Maxilla

57
Q

The zygoma is referred to as the ______

A

cheekbone

malar bone

58
Q

The Ramus is the ____ portion of the mandible found posterior to ?

A

vertical

3rd molar

59
Q

The body of the madible goes from ____ to ____ and is ___ shaped

A

ramus

ramus

U

60
Q

What is the portion of the mandible that encases and supports the teeth

A

Alveolar Process

61
Q

The Genial Tubercules are located on the ___ side of the madible and are __-_____ radiopacity inferior to the apices of?

A

lingual

ring-shaped

MN incisors

62
Q

What is located near the midline and surrounded by genial tubercules

A

lingual foramen

63
Q

The Mental Ridge extends from the _ region to the _ and slopes slightly ___

A

premolar

midline

upward

64
Q

The Mental Ridge is seen as a __ ____ band and often is superimposed over MN ant. teeth

A

thick radiopaque

65
Q

The mental fossa is located _ the mental ridge and is seen as a _ area

A

above

radiolucent

66
Q

What is located on the external surface of the mandible in the region of mandibular premolars

HINT: often mistaken for periapical lesions

A

Mental Foramen

67
Q

The mylohyoid ridge extends from the __ region ____ and ___ toward the lower border of the mandibular symphysis

A

molar

down

forward

68
Q

What extends from the mandibular foramen to the mental foramen

A

Mandibular Canal

69
Q

Teh Mandibular Canal is often seen _ or __ over the apices of Mandibular Molar teeth

A

below

superimposed

70
Q

The internal oblique ridge goes from the ____ to the _ region or may continue on as the _____ ____

A

ramus

3rd molar

Mylohyoid Ridge

71
Q

The Submandibular Fossa is located inferior to what?

A

Mylohyoid ridge

72
Q

What bone (image) is not seeno n a mandibular PA but does appear on a maxillary molar PA

A

Coronoid Process of the Mandible

73
Q

The Alveolar Crest is located __ to _ mm below the CEJ on an x-ray

A
  1. 5
  2. 0
74
Q

The PDL is about ___mm wide and sits between what 2 structures?

A

0.5

root of tooth and Lamina dura

75
Q

The Alveolar bone is __ between anterior teeth and ___ and _____between posterior teeth

A

pointed

flat and smooth

76
Q

Is the Alveolar Crest Less Dense in Posterior region or Anterior region of mouth

A

Posterior

77
Q
A

Radiology (24 decks)

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