RAD 112 Facial Bones | Actual study set
| Questions and verified Answers
Which of the following is NOT an aspect of the maxilla?
A. Frontal process
B. Body
C. Zygomatic process
D. Ramus - ANSW-D. Ramus
Which is the only unpaired bone in the adult?
mandible
maxillia
palatine bone - ANSW-manidible
The point of union between both halves of the mandible is termed:
ramus
mentum
symphysis menti - ANSW-symphysis menti
Which two bones form the bony nasal septum? - ANSW-Ethmoid and vomer
Which of the following structures are described as scroll-like projections found in the nasal cavity? -
ANSW-chonchae
What is the function of the conchae?
to warm air
to clean air
send oxygen to the lungs
1 and 2 only - ANSW-1 and 2 only
Which of the following terms describes the junction of the two nasal bones?
acanthion
nasion
mental point - ANSW-nasion
Which imaging modality best demonstrates bony erosion of the maxillary sinus resulting form acute
sinusitis?
xray
Ct
Mri
ultrasound - ANSW-CT
T/F Facial bone studies should be performed erect whenever possible - ANSW-T
T/F A Le Fort fracture produces a "free-floating" zygomatic bone - ANSW-F
,T/F A Tri-pod fracture produces a "free-floating" zygomatic bone - ANSW-T
Which bone is involved with a tripod fracture?
zygomatic
maxilliary
frontal
mandible - ANSW-zygomatic bone
Which frontal projection of the facial bones best visualize the region of the maxilla and orbits?
waters (parietoacanthial)
caldwell
rheese - ANSW-waters
Where are the petrous portions seen on a Parietoacanthial (Waters method) projection?
In the maxillary sinuses
superior to the maxillary sinuses
inferior to the maxillary sinuses - ANSW-inferior to the maxillary sinuses
Which single projection of the facial bones best demonstrate any possible air-fluid levels in the sinuses if
the patient cannot stand or sit erect?
horizontal beam
AP
PA - ANSW-horizontal beam
The CR is centered to exit at the level of the __________ for a well positioned 15° PA axial projection of
the facial bones
glabella
acanthion
nasion
mental point - ANSW-nasion
T/F The 15° PA axial (Caldwell) projection produces an unobstructed view of the maxilla. - ANSW-False
Which plane is place parallel to the IR with a true lateral projection of the facial bones?
coronal
midsagittal - ANSW-midsagittal
Where is the CR centered for a lateral projection of the facial bones?
zygoma
midway between the outer canthus and EAM
all of the above - ANSW-all of the above
T/F For a lateral facial bones projection, the chin should be adjusted so the IOML is perpendicular to the
front edge of the IR. - ANSW-T
, Which positioning line is placed perpendicular to the IR for a modified parietoacanthial (Waters method)
projection: facial bones?
MML
AML
LML
GAL
GML - ANSW-LML
The CR is centered to exit the level of the __________ for a well positioned parietoacanthial (Waters
method) projection?
nasion
acanthion
mental point
glabella - ANSW-acanthion
What is the angle between the OML and the plane of the IR with a parietoacanthial (Waters method)
projection? This places the __________ positioning line perpendicular to the IR.
30 MML
37 MML
30 GAL
37 GAL - ANSW-37 MML
T/F The CR should be angled as needed to be parallel to the glabellomeatal line (GML) for the
superoinferior tangental projection of the nasal bones - ANSW-False
What line should be parallel to the CR for a superoinferior tangental projection of the nasal bones?
GML
GAL
MML - ANSW-GAL
Where are the petrous ridges projected for a properly positioned modified parietoacanthial (Waters
method) projection?
upper half of the maxillary sinuses
lower half of the maxillary sinuses
inferior to the maxillary sinuses
superior to the maxillary sinuses - ANSW-lower half of the maxillary sinuses
Where is the CR centered for a lateral projection of the nasal bones?
1/2 superior to nasion
1/2 medial to nasion
1/2 in inferior to nasion - ANSW-1/2 in inferior to nasion
Which of the following technical factors do NOT apply to lateral nasal bone projections?
A. The technologist should not use automatic exposure control (AEC).
| Questions and verified Answers
Which of the following is NOT an aspect of the maxilla?
A. Frontal process
B. Body
C. Zygomatic process
D. Ramus - ANSW-D. Ramus
Which is the only unpaired bone in the adult?
mandible
maxillia
palatine bone - ANSW-manidible
The point of union between both halves of the mandible is termed:
ramus
mentum
symphysis menti - ANSW-symphysis menti
Which two bones form the bony nasal septum? - ANSW-Ethmoid and vomer
Which of the following structures are described as scroll-like projections found in the nasal cavity? -
ANSW-chonchae
What is the function of the conchae?
to warm air
to clean air
send oxygen to the lungs
1 and 2 only - ANSW-1 and 2 only
Which of the following terms describes the junction of the two nasal bones?
acanthion
nasion
mental point - ANSW-nasion
Which imaging modality best demonstrates bony erosion of the maxillary sinus resulting form acute
sinusitis?
xray
Ct
Mri
ultrasound - ANSW-CT
T/F Facial bone studies should be performed erect whenever possible - ANSW-T
T/F A Le Fort fracture produces a "free-floating" zygomatic bone - ANSW-F
,T/F A Tri-pod fracture produces a "free-floating" zygomatic bone - ANSW-T
Which bone is involved with a tripod fracture?
zygomatic
maxilliary
frontal
mandible - ANSW-zygomatic bone
Which frontal projection of the facial bones best visualize the region of the maxilla and orbits?
waters (parietoacanthial)
caldwell
rheese - ANSW-waters
Where are the petrous portions seen on a Parietoacanthial (Waters method) projection?
In the maxillary sinuses
superior to the maxillary sinuses
inferior to the maxillary sinuses - ANSW-inferior to the maxillary sinuses
Which single projection of the facial bones best demonstrate any possible air-fluid levels in the sinuses if
the patient cannot stand or sit erect?
horizontal beam
AP
PA - ANSW-horizontal beam
The CR is centered to exit at the level of the __________ for a well positioned 15° PA axial projection of
the facial bones
glabella
acanthion
nasion
mental point - ANSW-nasion
T/F The 15° PA axial (Caldwell) projection produces an unobstructed view of the maxilla. - ANSW-False
Which plane is place parallel to the IR with a true lateral projection of the facial bones?
coronal
midsagittal - ANSW-midsagittal
Where is the CR centered for a lateral projection of the facial bones?
zygoma
midway between the outer canthus and EAM
all of the above - ANSW-all of the above
T/F For a lateral facial bones projection, the chin should be adjusted so the IOML is perpendicular to the
front edge of the IR. - ANSW-T
, Which positioning line is placed perpendicular to the IR for a modified parietoacanthial (Waters method)
projection: facial bones?
MML
AML
LML
GAL
GML - ANSW-LML
The CR is centered to exit the level of the __________ for a well positioned parietoacanthial (Waters
method) projection?
nasion
acanthion
mental point
glabella - ANSW-acanthion
What is the angle between the OML and the plane of the IR with a parietoacanthial (Waters method)
projection? This places the __________ positioning line perpendicular to the IR.
30 MML
37 MML
30 GAL
37 GAL - ANSW-37 MML
T/F The CR should be angled as needed to be parallel to the glabellomeatal line (GML) for the
superoinferior tangental projection of the nasal bones - ANSW-False
What line should be parallel to the CR for a superoinferior tangental projection of the nasal bones?
GML
GAL
MML - ANSW-GAL
Where are the petrous ridges projected for a properly positioned modified parietoacanthial (Waters
method) projection?
upper half of the maxillary sinuses
lower half of the maxillary sinuses
inferior to the maxillary sinuses
superior to the maxillary sinuses - ANSW-lower half of the maxillary sinuses
Where is the CR centered for a lateral projection of the nasal bones?
1/2 superior to nasion
1/2 medial to nasion
1/2 in inferior to nasion - ANSW-1/2 in inferior to nasion
Which of the following technical factors do NOT apply to lateral nasal bone projections?
A. The technologist should not use automatic exposure control (AEC).
