Ch 11 Cranium Flashcards

1
Q

How many bones are in the cranium

A

8

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2
Q

How many facial bones are there

A

14

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3
Q

Where is the frontal bone

A

Forehead region

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4
Q

Where is the parietal bone

A

Posterior superior portion

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5
Q

Where is the occipital bone

A

Inferior posterior portion

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6
Q

Where is the temporal bone

A

Anterior the occipital bone on both sides

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7
Q

Where is the sphenoid bones

A

Inferior frontal & parietal bone, in front of temporal bone

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8
Q

Where is the ethmoid bone

A

Inferior frontal bone behind the nasal bone

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9
Q

Where is the coronal suture

A

Top of the head, runs side to side between frontal & parietal bones

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10
Q

Where is the sagittal suture

A

Front to back down the middle of the skull - sagittally

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11
Q

Where is the Squamosal suture

A

Runs in between parietal bone & temporal bones

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12
Q

What houses the auditory organs and organs of hearing

A

Temporal bone

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13
Q

Which is the densest and thickest portion of the cranium

A

Petrous portion of the temporal bone

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14
Q

Which line is perpendicular to the IR for the Caldwell view

A

Orbital meatal line

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15
Q

Where is the Canthus - inner & outer

A

Corners of the eyes

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16
Q

Where is the Nasion

A

Bridge of the nose

17
Q

Where is the acanthion

A

Bottom of the nose

18
Q

Where is the mental point

19
Q

Where is the infraorbital meatal line

A

Below the eye

20
Q

Which skull is average size

A

Mesocephalic

21
Q

In a mesocephalic skull, at what degree is the petrous pyramids from the MSP

22
Q

If the MSP is parallel to the inter pupillary line and perpendicular to the IR, what projection is it

A

Lateral projection

23
Q

What is perpendicular to the It for a AP Axial Townes method of the cranium

A

Infraorbital meatal line

24
Q

Where is the petrous ridges for the PA of the Cranium

A

Fills the orbit of the eye

25
Where is the petrous ridges in a Axial Caldwell method of the cranium
Bottom 1/3 of the orbit of the eye
26
Where is the dorsum sellae
Arch that connects orbits directly over bridge of the nose on an anterior view Posterior part of sella Turcica laterally
27
Where is the petrous ridges
In orbit of eye. Floor of eye
28
Lateral Skull Projection
SID: 40” Upright or seated, have patient put the side of their head directly parallel to the IR CR: 2” about the EAM (external Acoustic Meatus) Suspend breathing
29
PA Skull Projection - Caldwell
SID: 40” Position patient seated or prone with their forehead & nose touching the IR CR: exits the Nasion Suspend breathing
30
PA Axial Skull - Caldwell
SID: 40” Position patient seated or prone with their forehead & nose touching the IR CR: 15° caudad & exits the Nasion Suspend breathing
31
AP Axial Skull Projection Townes Method
SID: 40” Position patient supine or upright with back of head to IR. InfraOrbitomeatal line perpendicular to IR CR: 30° angulation caudad. 2.5” above glabella directed at foramen magnum. Suspend breathing
32
Submentovertical projection of the skull
SID: 40” Position patient by making IOML parallel with IR CR: through the sella turcica, perpendicular to the IOML (infraorbitomeatal line) Suspend breathing