Question 1

The figure below demonstrates the _____ method.

Accepted Answer

A)   Haas
B)   Stenvers
C)   Waters
D)   reverse Waters C

Question 2

For a lateral projection of the facial bones,the image receptor is centered to the:

Accepted Answer

A)   glabella.
B)   nasion.
C)   acanthion.
D)   zygomatic bone. D

Question 3

What is the average central-ray angulation for the PA axial (Haas)projection of the skull?

Accepted Answer

A)   25 degrees caudad
B)   25 degrees cephalad
C)   30 degrees caudad
D)   30 degrees cephalad B

Question 4

Which of the following reference lines is placed perpendicular to the image receptor for a parietoacanthial (Waters method)projection?

Accepted Answer

A)   MML
B)   OML
C)   AML
D)   IOML

Question 5

Letter A in the image below,used to evaluate the cranium,labels the:

Accepted Answer

A)   dorsum sella.
B)   foramen magnum.
C)   petrous ridge.
D)   parietal bone.

Question 6

What projection (method)is demonstrated in the image below,used to evaluate the cranium?

Accepted Answer

A)   PA
B)   AP axial (Towne) 
C)   PA axial (Caldwell) 
D)   SMV (Schüller)

Question 7

The OML forms an angle of how many degrees from the plane of the image receptor for an open-mouth parietoacanthial (Waters method)projection?

Accepted Answer

A)   25 degrees
B)   37 degrees
C)   45 degrees
D)   35 to 40 degrees

Question 8

All of the following are cranial bones except the:

Accepted Answer

A)   maxillae.
B)   frontal.
C)   sphenoid.
D)   occipital.

Question 9

What is the central-ray angulation for the AP axial projection of the TMJ?

Accepted Answer

A)   25 degrees caudad
B)   25 degrees cephalad
C)   35 degrees caudad
D)   35 degrees cephalad

Question 10

Which method of examining the skull is identified in the figure below?

Accepted Answer

A)   Haas
B)   Towne
C)   Shüller
D)   Caldwell

Question 11

The petromastoid portion is a part of which bone?

Accepted Answer

A)   Temporal
B)   Sphenoid
C)   Occipital
D)   Ethmoid

Question 12

What is the central-ray angulation for the AP axial projection of the zygomatic arches if OML is used as the positioning baseline?

Accepted Answer

A)   10 degrees caudad
B)   15 degrees caudad
C)   30 degrees caudad
D)   35 degrees caudad

Question 13

Which two parts of the patient's face touch the table for a PA axial projection (Caldwell method)? (Select all that apply.)

Accepted Answer

A)   Nose
B)   Acanthion
C)   Chin
D)   Forehead

Question 14

The part of the sphenoid bone identified in the figure below is the:

Accepted Answer

A)   clivus.
B)   clinoid processes.
C)   sella turcica.
D)   dorsum sellae.

Question 15

The bone identified in the figure below is the:

Accepted Answer

A)   maxilla.
B)   frontal.
C)   mandible.
D)   ethmoid.

Question 16

Which bone in the skull contains the auditory organs and the organs of hearing?

Accepted Answer

A)   Temporal
B)   Sphenoid
C)   Occipital
D)   Ethmoid

Question 17

Which part of the patient's face is touching the upright bucky,or table,for a parietoacanthial projection (Waters method)?

Accepted Answer

A)   Forehead
B)   Nose
C)   Chin
D)   Nose and chin

Question 18

The topographic line identified in the figure below is the:

Accepted Answer

A)   orbitomeatal.
B)   mentomeatal.
C)   acanthiomeatal.
D)   infraorbitomeatal.

Question 19

How many bones make up the cranium?

Accepted Answer

A)   4
B)   6
C)   8
D)   10

Question 20

For the tangential projection of the zygomatic arch,the top of the head is tilted how many degrees?

Accepted Answer

A)   10 degrees away from the side examined
B)   15 degrees away from the side examined
C)   10 degrees toward the side examined
D)   15 degrees toward the side examined

Exam 11: Cranium