Term
| Which term refers to the anterior process of the mandibular ramus? A. Cornu B. Condyle C. Coracoid D. Coronoid |
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Definition
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Term
The PA projection demonstrates the mandibular bodies without bony superimposition.
A. True
B. False |
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Definition
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Term
Which bone comprises most of the lateral wall of the orbit?
A. Maxillae
B. Lacrimal
C. Palatine
D. Zygomatic |
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Definition
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Term
Which positioning line should be perpendicular to the cassette when positioning for the lateral facial bones?
A. Orbitomeatal
B. Interpupillary
C. Acanthiomeatal
D. Infraorbitomeatal |
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Definition
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Term
Which of the following are evaluation criteria for the PA projection of the mandible?
1. The entire mandible should be included.
2. The mandibular rami should be superimposed.
3. The mandibular body and rami should be symmetric on both sides
4. The temporomandibular articulation should be seen lying anterior to the EAM
A. 1 and 3 only
B. 1, 2, and 3 only
C. 3 and 4 only
D. 1, 3, and 4 only
E. 1, 2, 3, and 4 |
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Definition
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Term
Which positioning landmark is located on the maxillae?
A. Gonion
B. Nasion
C. Acantion
D. Mental Point |
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Definition
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Term
What breathing instructions should be given to the patient for the PA axial projection of the mandible?
A. Stop breathing
B. Breathe slowly
C. Breathe rapidly
D. No instructions are given |
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Definition
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Term
What positioning landmark should be centered to the cassette for the PA axial projection of the mandible?
A. Nasion
B. Acanthion
C. Mental Point
D. Glabella |
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Definition
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Term
Which of the following are evaluation criteria for the PA axial projection of the mandible?
1. The entire mandible should be demonstrated
2. The mandibular rami should be superimposed
3. The condylar processes should be clearly demonstrated
4. The mandibular body and rami should be symmetric on both sides
5. The temporomandibular articulation should be seen anterior to the EAM
A. 1, 2, and 4 only
B. 1, 3, and 4 only
C. 1, 2, 3, and 4 only
D. 1, 3, 4, and 5 only
E. 1, 2, 3, 4, and 5 |
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Definition
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Term
For the axiolateral projection of the mandible, the neck should be flexed to pull the chin downward.
A. True
B. False |
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Definition
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Term
For the axiolateral projection of the mandible, the are of interest should be parallel with the cassette.
A. True
B. False |
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Definition
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Term
Which of the following projection is best used to evaluate the nasal septum?
A. Lateral projection of the nasal bones
B. Parietocanthal projection
C. AP axial of the skull
D. AP oblique projection |
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Definition
| B. Parietocanthal projection |
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Term
To demonstrate the mandibular body with the axiolateral oblique projection, how should the patient's head be positioned?
A. Keep the head in the true lateral position
B. From the true lateral, rotate the head 15 degrees toward the cassette
C. From the true lateral, rotate the head 30 degrees toward the cassette
D. From the true lateral, rotate the head 45 degrees toward the cassette |
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Definition
| C. From true lateral, rotate the head 30 degrees toward the cassette |
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Term
How many degrees and in which direction should the CR be directed for the axiolateral oblique projection of the mandible?
A. 15 degrees caudad
B. 15 degrees cephalad
C. 25 degrees caudad
D. 25 degrees cephalad |
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Definition
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Term
Which projection is performed with the patient's head positioned true lateral and the CR directed 25 degrees cephalad?
A. Axiolateral oblique projection of the TMJ
B. Axiolateral oblique projection of the mandible for the rami
C. Axiolateral oblique projection of the mandible for the mental symphysis
D. Axiolateral oblique projection of the mandible for the body |
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Definition
| B. Axiolateral oblique projection of the mandible for the rami |
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Term
Which of the following are evaluation criteria for the parietoacanthial projection for the facial bones?
1. The entire cranium should be demonstrated without rotation or tilt.
2. The petrous ridges should be projected immediately below the maxillary sinuses.
3. The distance between the lateral border of the skull and orbit should be equal on both sides.
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 |
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Definition
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Term
Keep the head in the true lateral position.
A. Axiolateral oblique mandible for the rami
B. Axiolateral oblique mandible for the body
C. Axiolateral oblique mandible for the mental symphysis
D. PA mandible |
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Definition
| A. Axiolateral oblique mandible for the rami |
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Term
Rotate head 30 degrees toward the cassette
A. Axiolateral oblique mandible for the rami
B. Axiolateral oblique mandible for the body
C. Axiolateral oblique mandible for the mental symphysis
D. PA mandible |
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Definition
| B. Axiolateral oblique mandible for the body |
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Term
Rotate head 45 degrees toward the cassette
A. Axiolateral oblique mandible for the rami
B. Axiolateral oblique mandible for the body
C. Axiolateral oblique mandible for the mental symphysis
D. PA mandible |
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Definition
| C. Axiolateral oblique mandible for the mental symphysis |
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Term
The broad surface of the ramus should be parallel with the plane of the cassette
A. Axiolateral oblique mandible for the rami
B. Axiolateral oblique mandible for the body
C. Axiolateral oblique mandible for the mental symphysis
D. PA mandible |
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Definition
| A. Axiolateral oblique mandible for the rami |
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Term
The broad surface of the mandibular body should be parallel with the plane of the cassette
A. Axiolateral oblique mandible for the rami
B. Axiolateral oblique mandible for the body
C. Axiolateral oblique mandible for the mental symphysis
D. PA mandible |
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Definition
| B. Axiolateral oblique mandible for the body |
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Term
The CR should exit the junction of the lips
A. Axiolateral oblique mandible for the rami
B. Axiolateral oblique mandible for the body
C. Axiolateral oblique mandible for the mental symphysis
D. PA mandible |
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Definition
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Term
The mandibular rami and body should be symmetric on both sides
A. Axiolateral oblique mandible for the rami
B. Axiolateral oblique mandible for the body
C. Axiolateral oblique mandible for the mental symphysis
D. PA mandible |
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Definition
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Term
CR exits at the acanthion
A. Parietoacanthoal (Water's method) projection for facial bones
B. Tangential zygomatic arches
C. Lateral facial bones
D. Parietoorbital (Rhese method) projection for orbits |
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Definition
| A. Parietoacanthoal (Water's method) projection for facial bones |
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Term
MSP of head is rotated and tilted in order to obtain an accurate patient position
A. Parietoacanthoal (Water's method) projection for facial bones
B. Tangential zygomatic arches
C. Lateral facial bones
D. Parietoorbital (Rhese method) projection for orbits |
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Definition
| B. Tangential zygomatic arches |
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Term
Patient is touching the bucky surface with three surfaces of the face
A. Parietoacanthoal (Water's method) projection for facial bones
B. Tangential zygomatic arches
C. Lateral facial bones
D. Parietoorbital (Rhese method) projection for orbits |
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Definition
| D. Parietoorbital (Rhese method) projection for orbits |
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Term
Glabeloalveolar line is perpendicular to the IR
A. Parietoacanthoal (Water's method) projection for facial bones
B. Tangential zygomatic arches
C. Lateral facial bones
D. Parietoorbital (Rhese method) projection for orbits |
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Definition
| B. Tangential zygomatic arches |
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Term
MML is perpendicular to the IR
A. Parietoacanthoal (Water's method) projection for facial bones
B. Tangential zygomatic arches
C. Lateral facial bones
D. Parietoorbital (Rhese method) projection for orbits |
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Definition
| A. Parietoacanthoal (Water's method) projection for facial bones |
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Term
Interpupillary line is perpendicular to the IR
A. Parietoacanthoal (Water's method) projection for facial bones
B. Tangential zygomatic arches
C. Lateral facial bones
D. Parietoorbital (Rhese method) projection for orbits |
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Definition
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Term
The projection is usually done unilaterally following the SMV
A. Parietoacanthoal (Water's method) projection for facial bones
B. Tangential zygomatic arches
C. Lateral facial bones
D. Parietoorbital (Rhese method) projection for orbits |
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Definition
| B. Tangential zygomatic arches |
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Term
What radiographic baseline should be parallel to the IR for a submentovertical (SMV) projection of the paranasal sinuses?
A. Oribiomeatal line
B. Infraorbitomeatal line
C. Acanthomeatal line
D. Glabellomeatal line |
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Definition
| B. Infraorbitomeatal line |
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Term
Which bone forms the lower posterior part of the nasal septum?
A. Lacrimal
B. Maxilla
C. Palatine
D. Vomer |
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Definition
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Term
For a lateral projection of the facial bones, the CR should be directed perpendicular to the IR to enter the anatomy at the
A. Outer canthus of the eye
B. External auditory meatus
C. Malar surface of the zygoma
D. Angle of the mandible |
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Definition
| C. Malar surface of the zygoma |
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Term
From which facial bone does the zygomatic process arise?
A. Frontal bone
B. Maxilla
C. Temporal bone
D. Zygoma |
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Definition
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Term
Which facial bone possesses a horizontal portion?
A. Vomer
B. Maxilla
C. Zygoma
D. Temporal |
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Definition
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Term
| Which bones comprise the bridge of the nose? A. Nasal B. Palatine C. Lacrimal D. Maxillae |
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Definition
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Term
Where are the lacrimal bones located?
A. Inside the nasal cavity
B. On the medial wall of each orbit
C. On the lateral wall of each orbit
D. Inferior to the maxillary sinus |
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Definition
| B. On the medial wall of each orbit |
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Term
Which bones form the posterior one fourth of the roof of the mouth?
A. Maxillae
B. Zygomatic
C. Palatine
D. Inferior nasal conchae |
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Definition
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Term
Which evaluation criterion pertains to the parietoacathial projection for facial bones?
A. The orbital roofs should be superimposed
B. The zygomatic arches should be free from overlying structures
C. The petrous pyramids should be projected within the orbits
D. The petrous ridges should be projected immediately below the maxillary sinuses |
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Definition
| D. The petrous ridges should be projected immediately below the maxillary sinuses |
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Term
Which landmark of the head should be centered to the cassette for the parietoacanthial projection of the facial bones?
A. Nasion
B. Acantion
C. Mental point
D. Outer canthus |
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Definition
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Term
What breathing instructions should be given to the patient for the acanthoparietal projection of the facial bones?
A. Stop breathing
B. Breath rapidly
C. Breathe slowly
D. No instructions need to be given |
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Definition
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Term
Which of the following are evaluation criteria for the lateral projection of the facial bones?
1. The orbital roofs should be superimposed
2. The mandibular rami should be almost perfectly superimposed
3. All facial bones should be completely included with the zygomatic bone in center
A. 1 and 2 only
B. 1 and 3 only
C. 2 and 3 only
D. 1, 2, and 3 |
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Definition
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Term
In addition to the zygoma and nose, which other structure should be in contact with the x-ray table or vertical grid device for the parietoorbital projection of the orbits?
A. Ear
B. Chin
C. Nose
D. Forehead |
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Definition
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Term
How should the CR be directed with the Rhese method?
A. Perpendicular
B. 10 degrees caudad
C. 53 degrees caudad
D. 12 degrees caudad |
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Definition
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Term
Which positioning line and angle indicate correct positioning of the head for the parietoacathial projection, Water's method?
A. OML; 37 degrees to the IR
B. OML; Perpendicular to the IR
C. Infraorbiomeatal line; 37 degrees to the IR
D. Infraorbiomeatal line; Perpendicular to the IR |
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Definition
| A. OML; 37 degrees to the IR |
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Term
How many degrees and in what direction should the CR be directed for the AP axial projection (Towne method) for bilateral zygomatic arches?
A. 30 degrees caudad
B. 37 degrees caudad
C. 30 degrees cephalad
D. 37 degrees cephalad |
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Definition
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Term
With reference to the IR, how should the midsagittal plane be adjusted for the tangential projection demonstrating an individual zygomatic arch?
A. Parallel with the IR
B. 15 degrees from perpendicular
C. 37 degrees to the IR
D. 53 degrees to the IR |
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Definition
| B. 15 degrees from perpendicular |
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Term
| Which statement best describes how the CR should be directed for an SMV of the Zygomatic arches? A. Angled cephalically and centered to the glabella B. Angled caudally and centered to the zygomatic arch of interest C. Perpendicular to the IOML and centered on the MSP of the throat |
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Definition
| C. Perpendicular to the IOML and centered on the MSP of the throat |
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Term
For the SMV projection, what causes the zygomatic arches to be projected beyond the parietal eminences?
A. The divergent x-ray beam
B. The head tilted 15 degrees
C. The head rotated 15 degrees
D. The natural shape of the human head |
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Definition
| A. The divergent x-ray beam |
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Term
Which of the following evaluation criteria indicate that the patient was properly positioned for a lateral projection of the nasal bones?
1. All facial bones should be demonstrated
2. The zygomatic processes should be seen superimposed
3. The anterior nasal spine and frontonasal suture should be visualized
4. The nasal bone and soft tissue should be demonstrated without rotation
A. 1 and 2
B. 2 and 3
C. 3 and 4
D. All of the above |
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Definition
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