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Quiz 1 Flashcards

0
Q

Number of facial bones

A

•14

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1
Q

Number of cranial bones

A

•8

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2
Q

Fibrous ridged joints in the skull

A

•sutures

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3
Q

Number of sutures

A

•4

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4
Q

Which cranial bone contains the external auditory/canal

A

•temporal bone

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5
Q

The foramen magnum is located on which bone

A

•occipital bone

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6
Q

Which bones form the roof of the skull

A

•parietal bones

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7
Q

Ethmoid bone is situated

A

•Between the orbits

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8
Q

OML stands for

A

•orbitomeatal line

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9
Q

OML two references

A
  • External acoustic meatus

* outer canthus (corner of eye)

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10
Q

Gonion

A

•angle of mandible

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11
Q

Glabella

A

•between the eyebrows

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12
Q

Nasion

A

•between the eyes top the nose

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13
Q

Interpupillary line

A

•line crossing the pupils

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14
Q

Glabellomeatal line reference

A
  • external acoustic meatus EAM-

* Glabella

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15
Q

Acanthion

A

•the base of the nasal spine

16
Q

Skull lateral position

A
  • patient semi-prone or seated erect

* patients midsagittal plane is parallel to table & interpupillary line is perpendicular to table.

17
Q

Mentomeatal line refrence

A
  • external acoustic meatus EAM-

* mental point (chin)

18
Q

Mental point

19
Q

Acanthiomeatal line reference

A
  • external acoustic meatus EAM-

* acanthion

20
Q

Skull lateral reference point

A

•2” superior to EAM that is up

21
Q

PA Axial Caldwell CR

A
  • CR 15 degrees cuadad

* exiting the nasion

22
Q

IOML stands for

A

•infraorbitalmeatal line

23
Q

Glabelloalveolar line

A

•smack down the face in profile

24
Q

If patient is lateral what plane is parallel to IR

A

•midsagittal plane

25
Q

For most PA or AP projections the the mid-sagittal plan (MSP) & what other plane are perpendicular

26
Q

AP axial skull CR

A
  • 15 degrees cephalad

* entering the nasion

27
Q

During a Townes what showes up in the foramen magnum

A
  • dorsum sellae

* posterior clenoid

28
Q

Which skull projection makes the orbits appear the largest

A

•AP Axial Reverse Caldwell

29
Q

Two angulations for the AP Axial townes

A

•30 degrees cuadad to OML 37 degrees to the IOML

30
Q

AP Axial Townes CR

A
  • CR enters 2-1/2” superior to Glabella
  • 30 degrees cuadad to OML
  • 37 degrees to IOML
31
Q

Lateral structure shown

A

•sella turcica in profile

32
Q

PA Axial Caldwell structures shown

A
  • frontal bone

* orbits with Petrous ridges in lower third

33
Q

AP Axial reverse Caldwell CR

A

•enters nasion 15 degrees cephalic

34
Q

PA Axial (Haas, Reverse Townes) CR

A
  • enters 1-1/2” below the external occipital protuberance (inion)
  • angled 25 degrees cephalic to OML
35
Q

SMV stands for

A

•Submento vertex

36
Q

SMV CR

A

•perpendicular to IOML

37
Q

SMV reference point

A

•Through EAM

38
Q

SMV shows

A

•sinuses

Skull (6 decks)

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