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Radiographic Review > Skull Review > Flashcards

Skull Review Flashcards

1
Q

Which positioning landmark is located at the most superior point of the nasal bones?

A

Nasion

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2
Q

Which positioning landmark is the smooth elevation that is located between the superciliary arches?

A

Nasion

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3
Q

Which suture articulates the frontal bone with both parietal bones?

A

Coronal

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4
Q

Which suture joins both parietal bones with occipital bone?

A

Lambdoidal

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5
Q

The bregma fontanelle is located at the junction of which two sutures?

A

coronal and sagittal

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6
Q

The lambda fontanelle is located at the junction of which two sutures?

A

lambdoidal and sagittal

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7
Q

The bregma fontanelle is located at the junction of which cranial bones?

A

frontal and both parietals

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8
Q

Which skull classification refers to a long, narrow skull?

A

Dolichocephalic

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9
Q

Which skull classification refers to a short, wide skull?

A

Brachycephalic

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10
Q

Which skull classification refers to a typical skull?

A

Mesocephalic

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11
Q

How many degrees are in the angle formed between the midsagittal plane and the petrous pyramids in the mesocephalic skull?

A

47 degrees

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12
Q

How many degrees are in the angle formed between the midsagittal plane and the petrous pyramids in the brachycephalic skulls?

A

54 degrees

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13
Q

How many degrees are in the angle formed betwen the midsagittal plane and the petrous pyramids in the dolichocephalic skulls?

A

40 degrees

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14
Q

On which cranial bone is the cribriform plate located?

A

Ethmoid

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15
Q

The pterygoid processes project inferiorly from which cranial bone?

A

Sphenoid

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16
Q

Which bones comprise the bridge of the nose?

A

Nasal

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17
Q

Where is the vomer bone found?

A

On the floor of the nasal cavity

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18
Q

Which term refers to the anterior process of the mandibular ramus?

A

Coronoid

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19
Q

Which term refers to the posterior process of the mandibular ramus?

A

Condyle

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20
Q

Which two positioning lines or planes should be perpendicular to the IR for the PA projection of the skulls?

A

Orbitomeatal line and midsagittal plane

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21
Q

With reference to the patient, where should the IR be centered for the lateral projection of the skull?

A

2 inches above the EAM

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22
Q

Which positioning line should be parallel with the IR for the SMV projection of the skull?

A

Infraorbitomeatal line

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23
Q

Which projection of the skull produces a full basal image of the cranium?

A

SMV, Schuller method

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24
Q

Which projection of the skull should be obtained when the frontal bone is of primary interest?

A

PA with perpendicular central ray

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25
Q

For the PA axial projection, Haas method, of the skull, where should the central ray enter the patient’s head?

A

1.5 inches below the external occipital protuberance

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26
Q

How many degrees and in which direction should the central ray be directed for the PA axial projection, Haas method, of the skull?

A

25 degrees cephalad

27
Q

Which evaluation criterion pertains to the PA axial, Haas method, of the skulls?

A

The dorsum sella and posterior clinoids projected within the foramen magnum.

28
Q

Which positioning line extends from the EAM to the outer canthus?

A

Orbitomeatal

29
Q

Which positioning landmark is located at the base of the nasal spine?

A

Acanthion

30
Q

Which positioning landmark is most superior?

A

Glabella

31
Q

Where on the skull is the gonion located?

A

On the lateroposterior part of the mandible

32
Q

Where on the skull is the outer canthus located?

A

On the lateral border of each orbit

33
Q

Which positioning landmark is located at the anterior portion of the anterior portion of the mandible?

A

Mental point

34
Q

Which suture joins both parietal bones at the vertex

A

Sagittal

35
Q

Which suture join a parietal bones with both a sphenoid bone and a temporal bone?

A

Squamosal

36
Q

the lambda fontanelle is located at the junction of the which cranial bones?

A

Occipital and both parietals

37
Q

On which cranial bone are the superciliary arches located?

A

Frontal

38
Q

On which cranial bone is the crista galli located?

A

Ethmoid

39
Q

Which cranial bone has a petrous pyramids?

A

Temporal

40
Q

On which cranial bones is the sella turciaca located

A

Sphenoid

41
Q

Which cranial bone has the mastoid process?

A

Temporal

42
Q

On which cranial bone is the perpendicular plate located?

A

Ethmoid

43
Q

Which cranial bone has both greater and lesser wings?

A

Sphenoid

44
Q

Which cranial bone does the first cervical vertebra articulate?

A

Occipital

45
Q

The foramean magnum is a part of which cranial bone?

A

Occipital

46
Q

Form which cranial bone does the zygomatic process arise?

A

Temporal

47
Q

The EAM is a part of which cranial bone?

A

Temporal

48
Q

The temporal process projects posteriorly from which facial bone?

A

Zygomatic

49
Q

With which bone does the mandible articulate?

A

Temporal

50
Q

Where are the lacrimal bones located?

A

On the medial wall of each orbits

51
Q

Which bone comprises most of the lateral wall of the orbital cavities?

A

Zygomatic

52
Q

Which facial bones have alveolar processes?

A

maxillae and mandible

53
Q

Which bones form the posterior one fourth of the roof of the mouth?

A

Palatine

54
Q

Which postioning landmark is located on the maxillae?

A

Acanthion

55
Q

With reference to the IR, how should the interpupilary line and the midsagittal plane be positioned for a lateral projection of the skull?

A

IP: perpendicular; MSP: parallel

56
Q

For the AP axial projection, Towne method, of the skull, how many degrees and in which direction should the central ray be directed when the OML is perpendicular to the IR?

A

30 degrees caudad

57
Q

For the AP axial projection, Towne method, of the skull, how many degrees and in which direction should the central ray be directed when the IOML is perpendicular to the IR?

A

37 degree caudad

58
Q

Which projection of the skull can be correctly performed with the central ray angled 37 degrees?

A

AP axial, Towne method

59
Q

Which projection of the skull can be correctly performed with the central ray angled 15 degrees?

A

PA axial, Caldwell method

60
Q

Which projection of the skull projects the peterous bones in the lower third of the orbits?

A

PA axial, Caldwell method

61
Q

Which evaluation criterion pertains to the AP axial projection, Towne method, of the skulls?

A

Part of the sella turicica should be seen within the foramen magnum.

62
Q

Which evaluation criterion pertains to the PA projection of the skull?

A

The distance from the lateral border of the skull to the lateral border of the orbits should be the same on both sides

63
Q

Which evaluation criterion pertains to the lateral projection of the skull?

A

The orbital roofs should be superimposed

64
Q

Which evaluation criterion pertains to the SMV projection of the skull?

A

The mental protuberance should superimposed the anterior frontal bone.

Radiographic Review (14 decks)

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