Ch 11 Cranium

Question 1

How many bones are in the cranium

Answer 1

8

Question 2

How many facial bones are there

Answer 2

14

Question 3

Where is the frontal bone

Answer 3

Forehead region

Question 4

Where is the parietal bone

Answer 4

Posterior superior portion

Question 5

Where is the occipital bone

Answer 5

Inferior posterior portion

Question 6

Where is the temporal bone

Answer 6

Anterior the occipital bone on both sides

Question 7

Where is the sphenoid bones

Answer 7

Inferior frontal & parietal bone, in front of temporal bone

Question 8

Where is the ethmoid bone

Answer 8

Inferior frontal bone behind the nasal bone

Question 9

Where is the coronal suture

Answer 9

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

Question 10

Where is the sagittal suture

Answer 10

Front to back down the middle of the skull - sagittally

Question 11

Where is the Squamosal suture

Answer 11

Runs in between parietal bone & temporal bones

Question 12

What houses the auditory organs and organs of hearing

Answer 12

Temporal bone

Question 13

Which is the densest and thickest portion of the cranium

Answer 13

Petrous portion of the temporal bone

Question 14

Which line is perpendicular to the IR for the Caldwell view

Answer 14

Orbital meatal line

Question 15

Where is the Canthus - inner & outer

Answer 15

Corners of the eyes

Question 16

Where is the Nasion

Answer 16

Bridge of the nose

Question 17

Where is the acanthion

Answer 17

Bottom of the nose

Question 18

Where is the mental point

Answer 18

Chin

Question 19

Where is the infraorbital meatal line

Answer 19

Below the eye

Question 20

Which skull is average size

Answer 20

Mesocephalic

Question 21

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

Answer 21

47°

Question 22

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

Answer 22

Lateral projection

Question 23

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

Answer 23

Infraorbital meatal line

Question 24

Where is the petrous ridges for the PA of the Cranium

Answer 24

Fills the orbit of the eye

Question 25

Where is the petrous ridges in a Axial Caldwell method of the cranium

Answer 25

Bottom 1/3 of the orbit of the eye

Question 26

Where is the dorsum sellae

Answer 26

Arch that connects orbits directly over bridge of the nose on an anterior view

Posterior part of sella Turcica laterally

Question 27

Where is the petrous ridges

Answer 27

In orbit of eye. Floor of eye

Question 28

Lateral Skull Projection

Answer 28

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

Question 29

PA Skull Projection - Caldwell

Answer 29

SID: 40”

Position patient seated or prone with their forehead & nose touching the IR

CR: exits the Nasion

Suspend breathing

Question 30

PA Axial Skull - Caldwell

Answer 30

SID: 40”

Position patient seated or prone with their forehead & nose touching the IR

CR: 15° caudad & exits the Nasion

Suspend breathing

Question 31

AP Axial Skull Projection Townes Method

Answer 31

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

Question 32

Submentovertical projection of the skull

Answer 32

SID: 40”

Position patient by making IOML parallel with IR

CR: through the sella turcica, perpendicular to the IOML (infraorbitomeatal line)

Suspend breathing