MIDTERM PT. 5 (SKULL PROJECTIONS) Flashcards

1
Q

WHAT ARE THE 7 SKULL PROJECTIONS

A
  1. PA PROJECTION
  2. PA AXIAL PROJECTION/ CALDWELL METHOD
  3. LATERAL PROJECTION
  4. AP AXIAL PROJECTION/ TOWNE METHOD
  5. PA AXIAL PROJECTION/ HAAS METHOD
  6. SUBMENTO VERTICO PROJECTION/ FULL BASAL PROJECTION/ SCHULLER METHOD
  7. VERTICO SUBMENTOL PROJECTION
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2
Q

IN PA PROJ. WHAT PART OF THE PX IS AGAINST THE BUCKEY SURFACE

A

NOSE & FOREHEAD

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3
Q

PA PROJ: OML IS ___ TO IR; ALIGN ___ PERPENDICULAR TO MIDLINE OF THE TABLE

A

PERPENDICULAR
MSP

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4
Q

PA PROJ: CR

A

CR IS PERPENDICULAR TO IR
CENTERED TO AND EXITS GLABELLA

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5
Q

PA PROJ: STRUCTURE SHOWN

A

PARS PETROSA
FRONTAL BONE
CRISTA GALLI
FRONTAL& ETHMOID SINUSES
GREATER AND LESSER WING OF SPHENOID
PETROUS RIDGES FILL THE ORBITS

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6
Q

PERTAINS TO TUBE ANGULATION

A

AXIAL

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7
Q

WHAT PART OF THE PX’S BODY ARE AGAINST THE BUCKY SURFACE IN A PA AXIAL PROJ./ CALDWELL METHOD

A

NOSE & FOREHEAD

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8
Q

PA AXIAL PROJ./ CALDWELL METHOD:
____ MUST BE ___ TO IR

A

OML
PERPENDICULAR

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9
Q

PA AXIAL PROJ./ CALDWELL METHOD: CR

A

15 DEGREES CAUDAD. TO EXIT NASION

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10
Q

PA AXIAL PROJ./ CALDWELL METHOD: STRUCTURE SHOWN

A

PARS PETROSA (PETROUS RIDGE) LOWER- 1/3 OF THE ORBITS
FRONTAL BONE
ORBITAL RIM
ANTERIOR ETHMOIDAL AIR CELLS

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11
Q

LATERAL PROJECTION: POSITION IS ___

A

OBLIQUE

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12
Q

A PROJECTION: PLACE THE HEAD IN A TRUE LATERAL POSITION WITH THE PXN’S BODY AS OBLIQUE AS NEEDED FOR COMFORT

A

LATERAL PROJECTION

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13
Q

LATERAL PROJECTION:
MSP IS ___ TO IR
ALIGN INTERPUPILLARY LINE (IPL) ___ TO IR
IOML MUST BE ___ TO IR

A

PARALLEL
PERPENDICULAR
PARALLEL

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14
Q

LATERAL PROJECTION: THE BASIS IF YOU’RE IN AN OBLIQUES POSITION

A

SCOTTY DOG

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15
Q

LATERAL PROJECTION:
CR IS ___ TO IR

A

PERPENDICULAR

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16
Q

LATERAL PROJECTION: RP (REFERENCE POINT) IS

A

2 INCHES SUPERIOR TO EAM

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17
Q

LATERAL PROJECTION: CR

A

3/4 ANTERIOR & 3/4 SUPERIOR TO EAM

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18
Q

LATERAL PROJECTION: STRUCTURE SHOWN

A

SELLA TURCICA & CLIVUS IN PROFILE
SUPERIMPOSED CRANIAL HALVES WITH THE LATERAL DETAILS CLOSEST TO THE IR ARE DEMONSTRATED
4 SINUSES: FRONTAL, MAXILLA, SPHENOID, ETHMOID)

19
Q

LATERAL PROJECTION: FOR TRAUMA PX

A

CROSS TABLE LATERAL

20
Q

____ DEMONSTRATE AIR FLUID LEVEL IN THE SPHENOID SINUSES

A

CROSS TABLE LATERAL

21
Q

CROSS TABLE LATERAL: CR

A

PERPENDICULAR TO IR
3/4 ANTERIOR & 3/4 SUPERIOR TO EAM

22
Q

___ RULE OUT SPHENOIDAL EFFUSION

A

CROSS TABLE LATERAL

23
Q

CROSS TABLE LATERAL: STRUCTURE SHOWN

A

SELLA TURCICA

24
Q

WHAT PROJECTION/ METHOD: DEPRESS THE PXN’S CHIN, BRINGING IML PERPENDICULAR TO IR

A

AP AXIAL PROJECTION / TOWNE METHOD

25
Q

AP AXIAL PROJECTION / TOWNE METHOD: CR

A

CR
30 DEGREES CAUDAD TO OML
37 DEGREES CAUDAD TO IOML

26
Q

AP AXIAL PROJECTION / TOWNE METHOD: REFERENCE POINT

A

2.5 INCHES ABOVE THE GLABELLA

27
Q

WHAT PROJECTION/ METHOD: FORAMEN MAGNUM MUST BE CYLINDRICAL TO CORRECT ANGULATION

A

AP AXIAL PROJECTION / TOWNE METHOD

28
Q

AP AXIAL PROJECTION / TOWNE METHOD: STRUCTURE SHOWN

A

OCCIPITAL BONE
PETROUS PYRAMIDS
FORAMEN MAGNUM
DORSUM SULLAE
POSTERIOR CLINOIDS IN THE SHADOW OF FORAMEN MAGNUM

29
Q

WHAT POSITION AND ANGULATION IS SUITED FOR PX WITH OCCIPITAL FRACTURE

A

AP POSITION
30 DEGREES CAUDAD

30
Q

AP AXIAL PROJECTION OF CRANIUM: “CAGT”

A

CHAMBERLAIN
ALTSCHUL
GRASHEY
TOWNE

31
Q

WHAT PART OF THE PXN’S BODY ARE RESTED IN A PA AXIAL PROJECTION/ HAAS METHOD

A

HEAD RESTED ON THE FOREHEAD & NOSE

32
Q

AP AXIAL PROJECTION / TOWNE METHOD: CR
ANGLUATION ____
ENTERS ___ INCH BELOW THE ___ AND EXITS AT ____ INCH ABOVE THE ____

A

1 1/2 INCH
INION
1 1/2 INCH
NASION

33
Q

AP AXIAL PROJECTION / TOWNE METHOD: STRUCTURE SHOWN

A

SELLA TURCICA

34
Q

AP AXIAL PROJECTION / TOWNE METHOD: STRUCTURE SHOWN

A

SELLA TURCICA
SELLAR STRUCTURES SEEN WITHIN THE FORAMEN MAGNUM

35
Q

WHAT PROJECTION OR METHOD: HYPEREXTEND THE NECK AND RAISE THE CHIN AS POSSIBLE UNTIL IOML IS PARALLEL TO IR

A

SUBMENTO VERTICO PROJECTION/ FULL BASAL PROJECTION/ SCHULLER METHOD

36
Q

SUBMENTO VERTICO PROJECTION/ FULL BASAL PROJECTION/ SCHULLER METHOD: PXN’S HEAD REST ON ____

A

VERTEX

37
Q

SUBMENTO VERTICO PROJECTION/ FULL BASAL PROJECTION/ SCHULLER METHOD: CR

A

CR IS PERPENDICULAR TO IOML

38
Q

SUBMENTO VERTICO PROJECTION/ FULL BASAL PROJECTION/ SCHULLER METHOD: REFERENCE POINT

A

3/4 INCH ANTERIOR TO LEVEL OF EAM (MIDWAY BETWEEN ANGLES OF MANDIBLE)

39
Q

SUBMENTO VERTICO PROJECTION/ FULL BASAL PROJECTION/ SCHULLER METHOD: STRUCTURE SHOWN

A

ZYGOMA (BASAL SKUL)
BASE OF THE SKULL
FORAMEN MAGNUM
OVALE
SPINOSUM
MANDIBLE
HARD PALATE
ZYGOMATIC ARCHES
PETROUS RIDGES
ETHMOID & SPHENOID SINUSES
OCCIPITAL BONE

40
Q

OTHER TERM FOR SUBMENTO VERTICO PROJECTION IS?

A
41
Q

ALSO KNOWN AS WATER’S VIEW

A

VERTICO SUBMENTO PROJECTION

42
Q

VERTICO SUBMENTO PROJECTION: TRUE WATER (ANGULATION)

A

30 DEGREES

43
Q

VERTICO SUBMENTO PROJECTION: SHALLOW WATER (ANGULATION)

A

50 DEGREES

44
Q

VERTICO SUBMENTO PROJECTION/ WATER’S VIEW: CR

A

CR PASSES THROUGH A POINT 3/4 INCH ANTERIOR TO THE LEVEL OF EAM