Question 1

The modified parietoacanthial (modified Waters) projection requires more extension of the head and neck as compared with the parietoacanthial (Waters) projection.

Accepted Answer

A) True 
 B)False

Question 2

The recommended digital systems kV range for the superoinferior tangential (axial)  projection of the nasal bones is:

Accepted Answer

A)  40 to 50.
B)  50 to 60.
C)  70 to 80.
D)  75 to 85.E) A) and B)
F) A) and C)

Question 3

A patient enters the ED with facial bone injuries.The physician is concerned about a possible blow-out fracture of the left orbit.Which one of the following projections would best diagnose this injury?

Accepted Answer

A)  Parietoacanthial (Waters method)  projection
B)  Submentovertical projection
C)  Superoinferior (tangential)  projection
D)  Modified parietoacanthial (modified Waters)  projectionE) A) and D)
F) A) and C)

Question 4

Which of the following projections will best demonstrate the entire mandible with one exposure?

Accepted Answer

A)  AP axial
B)  Submentovertical
C)  Axiolateral oblique
D)  TomographyE) None of the above
F) A) and B)

Question 5

Which bony structure is labeled v? 
(Anatomic structures are labeled i through vi and sutures a through h.)

Accepted Answer

A)  EAM
B)  Mastoid process
C)  Styloid process
D)  Zygomatic processE) None of the above
F) B) and D)

Question 6

The cranial bone labeled i is the: 
(Anatomic structures are labeled i through vi and sutures a through h.)

Accepted Answer

A)  sphenoid.
B)  lacrimal.
C)  ethmoid.
D)  palatine.E) C) and D)
F) A) and B)

Question 7

Where is the CR centered for a lateral projection of the facial bones?

Accepted Answer

A)  Outer canthus
B)  Acanthion
C)  Midway between the glabella and the EAM
D)  Zygoma, midway between the EAM and the outer canthusE) A) and C)
F) B) and C)

Question 8

Both CT (computed tomography) and MRI (magnetic resonance imaging) can provide reconstructed images in three planes: axial, sagittal, and coronal.

Accepted Answer

A) True 
 B)False

Question 9

Which positioning line is parallel to the IR for the oblique inferosuperior (tangential)  projection of the zygomatic arches?

Accepted Answer

A)  Midsagittal plane
B)  Infraorbitomeatal
C)  Orbitomeatal
D)  GlabelloalveolarE) None of the above
F) All of the above

Question 10

An average-shaped skull with a 47° angle between the petrous pyramids and the midsagittal plane is classified as:

Accepted Answer

A)  mesocephalic.
B)  brachycephalic.
C)  dolichocephalic.
D)  morphocephalic.E) All of the above
F) A) and D)

Question 11

Match each of the following radiographic appearances with the corresponding pathologic indication.(Use each selection only once.) 
-Radiolucent areas within the bony cranium

Accepted Answer

A)  Multiple myeloma
B)  Paget's disease
C)  Metastases
D)  Pituitary adenomaE) C) and D)
F) B) and D)

Question 12

The posterior aspect of the orbit is termed the:

Accepted Answer

A)  apex.
B)  base.
C)  sphenoid strut.
D)  crown.E) A) and B)
F) B) and C)

Question 13

What can the technologist do if the patient cannot extend the head and neck adequately for the routine submentovertical projection of the zygomatic arches?

Accepted Answer

A)  Perform the Haas method.
B)  Use a short SID to magnify the arches.
C)  Angle the CR to place it perpendicular to the IOML.
D)  Rotate the skull 15° away from the affected side.E) B) and C)
F) C) and D)

Question 14

Where are the ethmoid sinuses located within the ethmoid bone?

Accepted Answer

A)  Perpendicular plate
B)  Pterygoid processes
C)  Cribriform plate
D)  Lateral massesE) All of the above
F) A) and B)

Question 15

The lateral projection of the facial bones is typically a unilateral projection.

Accepted Answer

A) True 
 B)False

Question 16

Part 3 is part of which bone?

Accepted Answer

A)  Palatine
B)  Sphenoid
C)  Lacrimal
D)  EthmoidE) B) and D)
F) B) and C)

Question 17

Match each of the following radiographic appearances with the corresponding pathologic indication.(Use each selection only once.) 
-Distinctive lesions with moth-eaten appearance, a combination of increased density and destructive irregular border lesions

Accepted Answer

A)  Multiple myeloma
B)  Paget's disease
C)  Metastases
D)  Pituitary adenomaE) C) and D)
F) B) and C)

Question 18

Which bony landmark represents the highest level of the facial bone mass?

Accepted Answer

A)  Nasion
B)  Acanthion
C)  Orbital plates
D)  Supraorbital notchE) A) and D)
F) None of the above

Question 19

A patient comes to radiology with acute mastoiditis.Which one of the following imaging modalities will best demonstrate possible bony destruction within the mastoid region?

Accepted Answer

A)  CT
B)  Nuclear medicine
C)  Ultrasound
D)  PETE) A) and B)
F) B) and C)

Question 20

A fracture involving the facial bones where a blow to one side causes a fracture to the opposite side is termed a ____ fracture.

Accepted Answer

A)  tripod
B)  blow-out
C)  Le Fort
D)  contrecoupE) B) and C)
F) A) and D)

Exam 11: Cranium, Facial Bones, and Paranasal Sinuses

A fracture involving the facial bones where a blow to one side causes a fracture to the opposite side is termed a ____ fracture.

Correct AnswerverifiedShow Answer

Part 3 is part of which bone?

Correct AnswerverifiedShow Answer

The posterior aspect of the orbit is termed the:

Correct AnswerverifiedShow Answer

Which positioning line is parallel to the IR for the oblique inferosuperior (tangential) projection of the zygomatic arches?

Correct AnswerverifiedShow Answer

What can the technologist do if the patient cannot extend the head and neck adequately for the routine submentovertical projection of the zygomatic arches?

Correct AnswerverifiedShow Answer

Where is the CR centered for a lateral projection of the facial bones?

Correct AnswerverifiedShow Answer

Match each of the following radiographic appearances with the corresponding pathologic indication.(Use each selection only once.) -Distinctive lesions with moth-eaten appearance, a combination of increased density and destructive irregular border lesions

Correct AnswerverifiedShow Answer

The lateral projection of the facial bones is typically a unilateral projection.

Correct AnswerverifiedShow Answer

Where are the ethmoid sinuses located within the ethmoid bone?

Correct AnswerverifiedShow Answer

An average-shaped skull with a 47° angle between the petrous pyramids and the midsagittal plane is classified as:

Correct AnswerverifiedShow Answer

Match each of the following radiographic appearances with the corresponding pathologic indication.(Use each selection only once.) -Radiolucent areas within the bony cranium

Correct AnswerverifiedShow Answer

A patient enters the ED with facial bone injuries.The physician is concerned about a possible blow-out fracture of the left orbit.Which one of the following projections would best diagnose this injury?

Correct AnswerverifiedShow Answer

Which bony landmark represents the highest level of the facial bone mass?

Correct AnswerverifiedShow Answer

Which bony structure is labeled v? (Anatomic structures are labeled i through vi and sutures a through h.)

Correct AnswerverifiedShow Answer

The recommended digital systems kV range for the superoinferior tangential (axial) projection of the nasal bones is:

Correct AnswerverifiedShow Answer

A patient comes to radiology with acute mastoiditis.Which one of the following imaging modalities will best demonstrate possible bony destruction within the mastoid region?

Correct AnswerverifiedShow Answer

Which of the following projections will best demonstrate the entire mandible with one exposure?

Correct AnswerverifiedShow Answer

The cranial bone labeled i is the: (Anatomic structures are labeled i through vi and sutures a through h.)

Correct AnswerverifiedShow Answer

The modified parietoacanthial (modified Waters) projection requires more extension of the head and neck as compared with the parietoacanthial (Waters) projection.

Correct AnswerverifiedShow Answer

Both CT (computed tomography) and MRI (magnetic resonance imaging) can provide reconstructed images in three planes: axial, sagittal, and coronal.

Correct AnswerverifiedShow Answer

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