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Positioning 2 > skull work B test > Flashcards

skull work B test Flashcards

1
Q

where is the Glabella

A

midpoint of a unibrow

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2
Q

where is the nasion

A

bridge of the nose

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3
Q

where is the inter pupillary line

A

line connecting the pupils

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4
Q

where is the infraorbital margin

A

bottom of the bony orbit

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5
Q

where is the acanthion

A

upper lip

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6
Q

where is the mental point

A

chin

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7
Q

what are petrous ridges

A

thick ridge of bone between the ears

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8
Q

PA

A

OML perpendicular to IR
CR perpendicular to IR

Skull: exit Glabella
mandible : exit lips

PR’s fill the orbits

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9
Q

what anatomy is needed for an good PA mandible

A

condyles to mentum

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10
Q

Caldwell/ PA Axial

A

OML perpendicular to IR
CR 15 degrees caudal angle

exit: nasion
PR’s lower 1/3

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11
Q

what anatomy is needed for a good caldwell/PA axial

A

upper orbits

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12
Q

For caldwell sinuses how’s the CR positioned

A

Horizontal

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13
Q

How do you get PR’s in lower 1/3 of a Caldwell for sinuses

A

Raise OML 15 degrees from perpendicular

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14
Q

why does the CR need to be horizontal for sinuses

A

to best demonstrate air fluid levels

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15
Q

what anatomy is needed for a caldwell sinus view

A

frontal and ethmoid sinuses

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16
Q

Waters/ Parietoacanthial

A

MML perpendicular to IR
CR perpendicular to IR

exit: acanthion
PR’s JUST below maxillary sinuses

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17
Q

what 2 anatomical points are level while doing a waters view

A

EAM and chin

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18
Q

why do you do an open mouth waters

A

to see the sphenoid
Same alignments

19
Q

what is the open mouth waters view also referred as

A

the screaming waters

20
Q

Lateral View

A

IPL perpendicular ( NO TILT)
MSP parallel (NO ROTATION)
IOML perpendicular to FRONT EDGE of IR

21
Q

Townes/AP Axial view

A

OML perpendicular to IR
CR 30 degrees caudal

PR’s lower than foramen magnum

22
Q

Whats the alternative for Townes /AP axial

A

chin tuck
IOML perpendicular to IR
CR 37 degrees caudal

PR’s lower than foramen magnum

23
Q

What anatomy is needed for an Townes Skull

A

the occipital bone
dorum sella & posterior clinoid process within magnum foramen

24
Q

why do you do a Townes mandible view

A

to see the rami on edge

25
Q

SMV view

A

IOML parallel to IR
CR perpendicular to IOML
CR parallel to MSP (no tilt)

MENTUM ALIGNED WITH FRONTAL BONE

26
Q

Hoe must the CR remain to produce a SMV image

A

perpendicular to IOML

27
Q

Tangential Zygoma View

A

IOML parallel to IR
CR perpendicular to IOML

chin tilted 15 degrees toward ROI
moves mandible toward skull

28
Q

Axiolateral mandible

A

CR 25 chapalic
Rotation of face TOWARDS IR

29
Q

How far from lateral do you turn to see your condyles & ramus in axiolateral mandible

A

0 degrees

30
Q

How far from lateral do you turn to see a general survey in axiolateral mandible

A

10-15 degrees

31
Q

How far from lateral do you turn to see the body of mandible in axiolateral mandible

A

30 degrees

32
Q

How far from lateral do you turn to see the mentum in axiolateral mandible

A

45 degrees

33
Q

What does the 25 degree cephalic angle do to the FAR SIDE

A

up & near side of interest

34
Q

what will 15 degree rotation of the face towards the IR demonstrate

A

ramus & posterior body

35
Q

what will 30 degree rotation of the face towards the IR demonstrate

A

anterior body parts

36
Q

PA axial mandible

A

OML perpendicular to IR
CR 25 degrees cephalic
exit: acanthion

PR’s mid/upper foramen magnum

37
Q

Rhese view

A

CR perpendicular to IR
AML perpendicular to IR

38
Q

Where do you want the optic foramen in a rhese view

A

lower outer quadrant

39
Q

Modified waters view

A

LML perpendicular to IR
CR horizontal
exit: acanthion

PR’s in the maxillary sinuses

40
Q

Schuller TMJ view

A

no rotation
CR 25 degrees caudal

41
Q

The Law TMJ view

A

15 degree rotation toward IR
CR 15 Caudal

42
Q

what 2 views are done for TMJ

A

BI lateral
Open & close

43
Q

Panorex view

A

IOML parallel to the floor
MSP vertical (no tilt)

Long exposure 5+ seconds

Positioning 2 (16 decks)

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