1. Which of the following radiographic views is most commonly
used for imaging the nasal bones?
a) Lateral view
b) Waters view
c) Townes view
d) PA (Posteroanterior) view
Answer: b) Waters view
Rationale: The Waters view (also known as the parietoacanthial
projection) is commonly used to visualize the nasal bones and the
maxillary sinuses.
2. What is the primary purpose of performing a lateral view for
facial bones?
a) To assess the nasal cavity
b) To evaluate fractures of the zygomatic arch
c) To assess the position and alignment of the facial bones
d) To check for sinus congestion
Answer: c) To assess the position and alignment of the facial bones
Rationale: The lateral view is used to visualize the facial bones'
alignment and detect any fractures or abnormalities in the facial
skeleton.
3. Which of the following is best demonstrated on the PA
(posteroanterior) projection of the facial bones?
a) Zygomatic arches
b) Nasal bones
c) Maxilla
d) Mandible
,Answer: b) Nasal bones
Rationale: The PA view is primarily used for imaging the nasal bones
as it provides an excellent projection for their visual assessment.
4. The zygomatic arches are best visualized using which of the
following projections?
a) Lateral skull
b) Submentovertex
c) Waters view
d) Tangential projection
Answer: d) Tangential projection
Rationale: The tangential view is specifically designed to demonstrate
the zygomatic arches, providing a clear image of these structures
without superimposition.
5. In which position should the patient be placed for the Townes
projection of the zygomatic arches?
a) Upright, facing the image receptor
b) Supine, with the head tilted backward
c) Prone, with the head rotated
d) Supine, with the chin tucked
Answer: b) Supine, with the head tilted backward
Rationale: For the Townes view, the patient should be positioned
supine with their head tilted back to allow the x-ray beam to pass
through the zygomatic arches.
6. What is the purpose of performing the submentovertex
projection in facial bone imaging?
, a) To evaluate the maxillary sinuses
b) To assess zygomatic arch fractures
c) To demonstrate the orbits
d) To visualize the nasal cavity
Answer: b) To assess zygomatic arch fractures
Rationale: The submentovertex projection is helpful in assessing the
zygomatic arches and is particularly used when fractures are suspected.
7. For a Waters view, where should the patient’s chin be placed?
a) Tucked against the chest
b) Elevated slightly
c) Resting on the image receptor
d) Slightly extended
Answer: c) Resting on the image receptor
Rationale: In the Waters view, the patient’s chin should rest against
the image receptor, ensuring the correct projection of the facial
structures.
8. Which of the following is a key indication for imaging of the
nasal bones?
a) Head trauma
b) Suspected fractures of the zygomatic arch
c) Persistent sinusitis
d) Deviation of the septum
Answer: a) Head trauma
Rationale: Nasal bone imaging is often requested after trauma to
evaluate for fractures, deformities, or other injuries.
used for imaging the nasal bones?
a) Lateral view
b) Waters view
c) Townes view
d) PA (Posteroanterior) view
Answer: b) Waters view
Rationale: The Waters view (also known as the parietoacanthial
projection) is commonly used to visualize the nasal bones and the
maxillary sinuses.
2. What is the primary purpose of performing a lateral view for
facial bones?
a) To assess the nasal cavity
b) To evaluate fractures of the zygomatic arch
c) To assess the position and alignment of the facial bones
d) To check for sinus congestion
Answer: c) To assess the position and alignment of the facial bones
Rationale: The lateral view is used to visualize the facial bones'
alignment and detect any fractures or abnormalities in the facial
skeleton.
3. Which of the following is best demonstrated on the PA
(posteroanterior) projection of the facial bones?
a) Zygomatic arches
b) Nasal bones
c) Maxilla
d) Mandible
,Answer: b) Nasal bones
Rationale: The PA view is primarily used for imaging the nasal bones
as it provides an excellent projection for their visual assessment.
4. The zygomatic arches are best visualized using which of the
following projections?
a) Lateral skull
b) Submentovertex
c) Waters view
d) Tangential projection
Answer: d) Tangential projection
Rationale: The tangential view is specifically designed to demonstrate
the zygomatic arches, providing a clear image of these structures
without superimposition.
5. In which position should the patient be placed for the Townes
projection of the zygomatic arches?
a) Upright, facing the image receptor
b) Supine, with the head tilted backward
c) Prone, with the head rotated
d) Supine, with the chin tucked
Answer: b) Supine, with the head tilted backward
Rationale: For the Townes view, the patient should be positioned
supine with their head tilted back to allow the x-ray beam to pass
through the zygomatic arches.
6. What is the purpose of performing the submentovertex
projection in facial bone imaging?
, a) To evaluate the maxillary sinuses
b) To assess zygomatic arch fractures
c) To demonstrate the orbits
d) To visualize the nasal cavity
Answer: b) To assess zygomatic arch fractures
Rationale: The submentovertex projection is helpful in assessing the
zygomatic arches and is particularly used when fractures are suspected.
7. For a Waters view, where should the patient’s chin be placed?
a) Tucked against the chest
b) Elevated slightly
c) Resting on the image receptor
d) Slightly extended
Answer: c) Resting on the image receptor
Rationale: In the Waters view, the patient’s chin should rest against
the image receptor, ensuring the correct projection of the facial
structures.
8. Which of the following is a key indication for imaging of the
nasal bones?
a) Head trauma
b) Suspected fractures of the zygomatic arch
c) Persistent sinusitis
d) Deviation of the septum
Answer: a) Head trauma
Rationale: Nasal bone imaging is often requested after trauma to
evaluate for fractures, deformities, or other injuries.
