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positioning ch 12 part 3

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1.
1 point
On a trauma lateral skull, blood is demonstrated in the sphenoid sinus. This commonly indicates _____________
2.
1 point
A fracture of the skull with jagged or irregular lucent line which lies at a right angle to the axis of the bone.
3.
1 point
If the mandibular rami are not superimposed on a lateral skull radiograph, the most likely cause is _______
4.
1 point
Which skull positioning line is placed parallel to the plane of the IR for the SMV projection?
5.
1 point
The ______________ possesses the zygomatic (malar) process.
6.
1 point
Infants have ______ fontanels
7.
1 point
Proliferative bony lesion of increased density (formation of new bone)
8.
1 point
_______ is the primary cause of orbital roofs not being superimposed on a lateral skull
9.
1 point
The ethmoid articulates with what 2 cranial bones?
10.
1 point
Destructive lesions with irregular margins (loss of bone)
11.
1 point
The cribiform plate is located on the ________ bone
12.
1 point
The right and left mastoid become which adult asterions?
13.
1 point
What 4 cranial bones articulate with the frontal bone?
14.
1 point
Another term for the pituitary gland is _______________
15.
1 point
Which imaging modality is best to differentiate between an epidural and subdural hemorrhage?
16.
1 point
The sphenoid articulates with _____ cranial bones
17.
1 point
The posterior fontanel becomes which adult asterion?
18.
1 point
Where does the CR exit for a PA axial Haas projection of the skull?
19.
1 point
The shallow depression just posterior to the base of the dorsum sellae and anterior to the foramen magnum is the _________
20.
1 point
On the SMV projection, the mandibular condyles should be visualized __________ to the petrous pyramids
21.
1 point
The foramen ovale is part of the _________ bone
22.
1 point
The organs/bones of hearing and equilibrium are housed within the ____________________.
23.
1 point
Which imaging modality demonstrates the beginning of a tumor of the auditory nerve sheath which originates in the internal auditory canal?
24.
1 point
What is the most sensitive imaging modality for detecting the difference between normal and abnormal brain tissue?
25.
1 point
Which one of the following projections best demonstrates the sella turcica in profile?
26.
1 point
In the internal ear, the ___________ is responsible for hearing.
27.
1 point
Which one of the following AP axial projections for sella turcica best vsualizes the anterior clinoid process?
28.
1 point
The superciliary arch is part of what cranial bone?
29.
1 point
The thyroid dose for an AP axial Towne projection is between _____________ mrad
30.
1 point
In the internal ear, ___________ are responsible for equilibrium
31.
1 point
The highest level of facial bone mass is the _________
32.
1 point
Which imaging modality demonstrates Paget's disease?
33.
1 point
When using a 37 degree caudad angle on the AP axial Towne projection, which positioning line should be perpendicular to the IR?
34.
1 point
The cochlea, vestibule, and semicircular canals make up the ______________
35.
1 point
Which imaging modality demonstrates mastoiditis?
36.
1 point
Which one of the following projections best demonstrates the foramen rotundum?
37.
1 point
Which one of the following pathologic indications may require a decrease in manual exposure factors?
38.
1 point
What is the CR angle for a PA axial Haas projection?
39.
1 point
The anterior fontanel becomes which adult asterion?
40.
1 point
Which fontanel is last to close? (at 18 months)
41.
1 point
What type of CR angle is used with the AP axial projection for sella turcica if the dorsum sellae and posterior clinoid processes are of primary interest?
42.
1 point
What is the name of the paired collections of bone found inferior to the cribriform plate that contain numerous air cells and help form the lateral walls of the nasal cavity?
43.
1 point
The 25 to 30 degree PA axial projection is used to visualize the _________
44.
1 point
With a possible trauma patient, what must be determined before performing the SMV projection of the skull?
45.
1 point
The ________ portion of the temporal bone is the most common site for fractures
46.
1 point
The right and left sphenoid fontanels become which adult asterions?
47.
1 point
Each Parietal bone articulates with what 5 cranial bones?
48.
1 point
Bone cysts of the frontal bone and squamous portion are best visualized on a ________________ projection.
49.
1 point
Where is the CR centered for a lateral projection of the sella turcica?
50.
1 point
Which structure(s) are found at the widest point of the skull?
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