Cranium: Nasal, Sinus Etc. Flashcards

1
Q

Where is the CR entering on a lateral of the facial bones?

A

Lateral surface of zygomatic bones, halfway between the outer canthus and EAM

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2
Q

For a lateral of the facial bones the exposure field should be no larger than

A

6x10in

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3
Q

For a waters projection of the facial bones, the OML’s should form a ____ degree angle with the plane of the IR.

A

37

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4
Q

For a water of the facial bones the CR is

A

Perpendicular, exiting the acanthion

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5
Q

The exposure field for the waters of the facial bones should be no larger than

A

8x10in

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6
Q

What structures are shown in the Waters of the facial bones

A

Orbits, maxillae, and zygomatic arches

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7
Q

For waters of the facial bones the IR is centered

A

At the level of the acanthion

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8
Q

For PA Caldwell of the facial bones, the CR exits the _____ at an angle of _____

A

Nasion
15 degrees caudad

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9
Q

For the lateral of the Nasal bone, the field of view should be no larger than

A

3x3 in

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10
Q

What structures are shown on a lateral view of the Nasal bone?

A

Nasal bone and soft tissue of the nose closer to the IR

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11
Q

For a lateral view of the sinuses the CR enters

A

1/2 to 1 inch posterior to the outer canthus

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12
Q

For a PA axial Caldwell view of the sinuses the grid device should be

A

Tilted down 15 degrees

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13
Q

Angling the grid for the PA axial Caldwell is preferred because

A

It brings the IR closer to the sinuses

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14
Q

For the waters method of the sinuses the OML should form a _____ degree angle from the IR

A

37

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15
Q

Where does the CR exit on a waters method of the sinuses?

A

Acanthion

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16
Q

The open mouth waters of the sinuses demonstrates

A

The sphenoidal sinuses

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17
Q

For sinuses it’s important for the patient to be ____ whenever possible

A

Upright

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18
Q

The ______ form the superior bony wall of the nasal cavity

A

Nasal bones

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19
Q

For the lateral of the nasal bones the CR is

A

Perpendicular to bridge of the nose, at a point 1in distal to the nasion

20
Q

The _____ form the superior bony wall of the nasal cavity

A

Nasal bones

21
Q

What are the smallest bones in the skull?

A

Lacrimal bones

22
Q

Each lacrimal bone contains a ______ through which a _____ passes

A

Lacrimal foramen
Tear duct

23
Q

The largest of immovable bones of the face

A

Maxillary bone

24
Q

Which facial bone articulates with all other facial bones except the mandible?

A

Maxillary bone

25
The _____ bones form the prominence of the cheeks and a part of the side wall and floor of orbital cavities.
Zygomatic
26
L-shaped bones
Palatine bones
27
Largest and most dense bone if the face
Mandible
28
U-shaped structure situated at the base of the tongue
Hyoid bone
29
Each orbit is composed of ___ different bones
7
30
Paranasal sinuses are not completely developed until the age of
17 or 18
31
The largest sinus is the
Maxillary sinus
32
Zygomatic bone and temporal bone form the
Zygomatic arch
33
How many facial bones are there?
14
34
For a lateral projection of the orbits, the ____ eye is touching the IR
Affected
35
Where does the IR enter for a lateral view of the orbits?
Perpendicular to outer canthus
36
For a PA axial projection of the orbits, the IR is centered
3/4in distal to the nasion
37
What is your tube angulation for a PA axial projection of the orbits?
30 caudal
38
What is on the IR for the modified waters method of the orbits?
Patients chin
39
The OML should form an angle of ____ with the plane of the IR on the modified waters of the orbits.
50
40
For an oblique of the mandible the patients head should be turned ____ degrees toward the IR
30
41
What is the tube angle for an oblique of the mandible?
25 degrees cephelad
42
What is the tube angle for the AP axial of the mandible?
35 caudad
43
For the axiolateral projection of the TMJ’s the patient is in the lateral position with the ____ side touching the IR.
Affected
44
For the axiolateral view of the TMJ’s the tube angle is
25-30 degrees caudad
45
For the axiolateral obliques of the TMJ’s the CR angle is
15 degrees caudad
46
How many sinus groups should be clearly demonstrated with the lateral projection?
4