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Mandible and orbits section (FINAL)

Total questions: 47

Worksheet time: 28mins

Name
Class
Date
1.

The vertical portion of the mandible is called

a)

Gonion

b)

Mental

c)

Ramus

d)

Angle

2.

The long axis of each orbit is angled what degree to the MSP

a)

45

b)

37

c)

30

d)

90

3.

The angle of the mandible is called

a)

Mandangle

b)

Inion

c)

Gonion

d)

Rami

4.

Which projection elongates the rami

a)

PA

b)

SMV

c)

AP

d)

PA Axial

5.

Radiologic positioning guidelines are based on dolichocephalic skull size and shape

a)

True

b)

False

6.

When the AML is perpendicular to the IR, which part are we looking at without slongation?

a)

Rami

b)

Gonion

7.

The goal is to place the desired portion of the mandible parallel with the IR

a)

True

b)

False

8.

In an axiolateral of the ramus, the head is:

a)

Rotated 30 degrees towards the IR

b)

Rotated 45 degrees towards the IR

c)

In a true lateral

d)

In a true AP

9.

The angle for the axiolateral projection is:

a)

15 degrees

b)

20 degrees

c)

25 degrees

d)

45 degrees

10.

Which projection requires the IOML to be as parallel as possible to the IR plane

a)

PA axial

b)

SMV

c)

AP axial

d)

PA

11.

PA axial orbits call for a caudal angulation of how many degrees

a)

15

b)

20

c)

25

d)

30

12.

On a lateral orbit projection, the inner canthus should be adjacent and centered to the IR

a)

True

b)

False

13.

"tear drop" is a sign of

a)

Orbital cellulitis

b)

Orbital roof fracture

c)

Orbital floor fracture

d)

Nasal fracture

14.

In a Rheese’s view, the optic foramen should show up in the upper quadrant of the orbit

a)

True

b)

False

15.

The long axis of each orbit is angled what degree to the MSP?

a)

37

b)

45

c)

23

d)

60

16.

When performing a PA mandibular body, which line is perpendicular to the IR plane? (use abbreviations)

a)

AML

b)

OML

c)

IOML

d)

MML

17.

A rhese view is primarily done to evaluate...

a)

optic foramen

b)

mandible

c)

zygomatic arch

d)

maxillary sinus

18.

In an axiolateral oblique of the body, the head is...

a)

rotated 30 degrees towards the IR

b)

rotated 45 degrees towards the IR

c)

perpendicular to the IR

d)

parallel to the IR

19.

The goal is to place the desired portion of the mandible perpendicular with the IR

a)

True

b)

False

20.

Radiographic positioning guidelines are based on mesocephalic skull size and shape

a)

True

b)

False

21.

When performing a lateral projection of the orbits, which line is perpendicular to the front IR edge? (use abbreviations)

a)

IOML - IPL

b)

OML - IPL

c)

MSP - IPL

d)

MML- IPL

22.

What is the most lateral part of the mandible?

a)

ramus

b)

body

c)

angle

d)

condyle

23.

In an axiolateral of the ramus, the head is...

a)

In a true lateral

b)

Tilted anteriorly

c)

Rotated medially

d)

Extended posteriorly

24.

When the mandibular symphysis is extending almost to the anterior border of the face, what projection is this (abbreviation is OK)

a)

SMV (Submentovertex)

b)

PA (Posteroanterior)

c)

Lateral

d)

Waters

25.

The angle of the mandible is also called _______.

a)

gonion

b)

zygomatic arch

c)

mental foramen

d)

coronoid process

26.

Which projection requires the IOML to be as parallel as possible to the IR plane?

a)

AP Axial

b)

SMV

27.

Orbits may be ordered for plastic foreign body screening before MRI procedures.

a)

True

b)

False

28.

True or False:

a)

True

b)

False

29.

Which line is placed perpendicular to the plane of the image receptor for the PA projection of the mandibular rami?

a)

OML

b)

IOML

c)

AML

d)

MML

30.

Each orbit is composed of how many bones?

a)

7

b)

5

c)

8

d)

6

31.

"tear drop" is a sign of...

a)

orbital floor fracture

b)

zygomatic arch fracture

c)

mandibular fracture

d)

nasal bone fracture

32.

What is the largest and densest bone of the face?

a)

mandible

b)

maxilla

c)

zygomatic bone

d)

nasal bone

33.

What projection of the orbits is done to rule out a blow out fracture?

a)

waters

b)

lateral

c)

PA skull

d)

submentovertex

34.

The angle for the an axiolateral projection is...

a)

15 to 20 degrees

b)

30 to 35 degrees

c)

45 to 50 degrees

d)

5 to 10 degrees

35.

Which projection elongates the rami?

a)

PA Axial

b)

AP Axial

c)

Lateral

d)

Towne

36.

For a rhese method, the head, nose and cheek are touching the IR.

a)

True

b)

False

37.

Which skull type is narrow from side to side, sort of like a banana?

a)

Dolichocephalic

b)

Mesocephalic

c)

Brachycephalic

38.

PA axial orbits call for a caudal angulation of how many degrees?

a)

25 degrees

b)

15 degrees

c)

30 degrees

d)

40 degrees

39.

Where are the two fractures located? (blank) and (blank)

(a)  

40.

What is 9?

(a)  

41.

What is 3?

(a)  

42.

What is 8?

(a)  

43.

What is 1?

(a)  

44.

What is 2?

(a)  

45.

What is 3?

(a)  

46.

What is 4?

(a)  

47.

What is 5?

(a)