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
Q

The _____ bones form the prominence of the cheeks and a part of the side wall and floor of orbital cavities.

A

Zygomatic

26
Q

L-shaped bones

A

Palatine bones

27
Q

Largest and most dense bone if the face

A

Mandible

28
Q

U-shaped structure situated at the base of the tongue

A

Hyoid bone

29
Q

Each orbit is composed of ___ different bones

A

7

30
Q

Paranasal sinuses are not completely developed until the age of

A

17 or 18

31
Q

The largest sinus is the

A

Maxillary sinus

32
Q

Zygomatic bone and temporal bone form the

A

Zygomatic arch

33
Q

How many facial bones are there?

A

14

34
Q

For a lateral projection of the orbits, the ____ eye is touching the IR

A

Affected

35
Q

Where does the IR enter for a lateral view of the orbits?

A

Perpendicular to outer canthus

36
Q

For a PA axial projection of the orbits, the IR is centered

A

3/4in distal to the nasion

37
Q

What is your tube angulation for a PA axial projection of the orbits?

A

30 caudal

38
Q

What is on the IR for the modified waters method of the orbits?

A

Patients chin

39
Q

The OML should form an angle of ____ with the plane of the IR on the modified waters of the orbits.

A

50

40
Q

For an oblique of the mandible the patients head should be turned ____ degrees toward the IR

A

30

41
Q

What is the tube angle for an oblique of the mandible?

A

25 degrees cephelad

42
Q

What is the tube angle for the AP axial of the mandible?

A

35 caudad

43
Q

For the axiolateral projection of the TMJ’s the patient is in the lateral position with the ____ side touching the IR.

A

Affected

44
Q

For the axiolateral view of the TMJ’s the tube angle is

A

25-30 degrees caudad

45
Q

For the axiolateral obliques of the TMJ’s the CR angle is

A

15 degrees caudad

46
Q

How many sinus groups should be clearly demonstrated with the lateral projection?

A

4