CH 17 RAD

1.

1 point

Which projection demonstrates the maxillary sinuses?

AP axial (Towne method)

PA axial (Caldwell method)

SMV

Parietoacanthial (Waters method)

2.

1 point

Which paranasal sinuses are demonstrated by the SMV projection?
1. Sphenoid
2. Ethmoid
3. Maxillary

1 and 2 only

2 and 3 only

1, 2, and 3

1 and 3 only

3.

1 point

Which of the following bones are categorized as cranial bones?
1. Maxilla
2. Ethmoid
3. Parietal

1 and 2 only

2 and 3 only

1 and 3 only

1, 2, and 3 only

4.

1 point

What positioning landmark is located at the inner corner of the eye?

inner canthus

nasion

EAM

acanthion

5.

1 point

Breathing technique is used to advantage when taking a lateral projection of the:

lumbar spine

cervical spine

thoracic spine

sacrum

6.

1 point

Where does the CR enter the patient for the AP projection of the thoracic spine?

Perpendicular to T10

Perpendicular to C7

Perpendicular to T7

Perpendicular to T5

7.

1 point

Which paranasal sinuses are demonstrated by the lateral projection?
1. Sphenoid
2. Frontal
3. Ethmoid

1 and 3 only

1 and 2 only

1, 2, and 3

2 and 3 only

8.

1 point

Which projection of the cranium best demonstrates the frontal bone?

AP axial (Towne method)

PA

Lateral

SMV

9.

1 point

What is the rationale of using a 72-inch SID for the lateral projection of the cervical spine

This SID provides more room for the limited operator to assist the patient into the proper position

This SID enables the limited operator to use a lower kVp technique

This SID reduces patient dose

This SID helps to overcome the magnification caused by the increased OID of the position

10.

1 point

What is the purpose of performing sinus radiography with the patient in the upright position?

To prevent superimposition of the cranial structures on the paranasal sinuses

Sinus radiography does not have to be performed with the patient upright

To demonstrate air/fluid levels

For ease of patient positioning

11.

1 point

There are several imaginary lines used to position the skull and facial bones. Which imaginary line connects the outer corner of the eye to the EAM?

The acanthiomeatal line

The mentomeatal line

The infraorbitomeatal line

The orbitomeatal line

12.

1 point

What is the most common facial fracture?

orbits

zygomatice arches

nasal bones

mandible

13.

1 point

What is the name of the articulation between the mandible and the cranium?

Mentomandibular joint

Temporomandibular joint

Craniomandibular joint

Mastomandibular joint

14.

1 point

When using a 35 × 43 cm IR, where should the CR enter the patient for an AP projection of the lumbar spine?

At the level of the sacrum along the coronal plane of the patient

At the level of the iliac crest in the midline of the patient

This size IR is not appropriate for lumbar spine images

At a level 1½ inches superior to the iliac crest in the midline of the patient

15.

1 point

Which cranial bone is most posterior?

Frontal bone

Occipital bone

parietal bones

mandible

16.

1 point

What is the foramen magnum?

The articulation between the parietal bones

A large hole in the occipital

The articulation between the mandible and the cranium

A large hole in the zygoma

17.

1 point

An abnormal lateral curvature of the spine is called:

Kyphosis

Lordosis

Scoliosis

Laminosis

18.

1 point

What is the medical term for the bony sockets that house the eyes?

Eye sockets

Glabella

Supraorbital Margin

Orbits

19.

1 point

Which structures should be seen on the lateral projection of the thoracic spine?

C5 through T7

C6 through L2

C7 through L1

T3 through T12

20.

1 point

Which of the following is the positioning landmark located at the junction of the nose and the upper lip?

acanthion

foramen magnum

EAM

Glabella

21.

1 point

The depression on the anterior surface of the skull between the orbits is called the:

infraorbital margin

inner canthus

nasion

acanthion

22.

1 point

When the posterior neural arch of a single vertebra fails to close during early development and there is no other abnormality, the condition is known as:

Herniated nucleus pulposus

Spina bifida occulta

Meningomyelocele

Stenosis

23.

1 point

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pa

24.

1 point

Where does the CR enter the patient for the AP projection of the lumbar spine

At the level of the iliac crest, centered to the midsagittal plane

At the level of the xiphoid process of the sternum, centered to the midcoronal plane

At a level 1½ inches above the iliac crest, centered to the midcoronal plane

The CR entrance point depends upon the size of the IR

25.

1 point

Which paranasal sinuses are demonstrated by the PA axial projection (Caldwell method)?
1. Maxillary
2. Frontal
3. Ethmoid

1 and 3 only

1 and 2 only

2 and 3 only

1, 2, and 3

26.

1 point

Which of the following conditions is diagnosed by CT, MRI or myelogram, but is not normally seen on routine radiography?

Stenosis of the intervertebral foramina

Compression fracture

Herniated nucleus pulposis

Spina bifida

27.

1 point

Air-filled cavities located in some bones of the face and cranium are called:

Paranasal sinuses

Antra of Highmore

Zygomatic prominences

Paranasal foramina

28.

1 point

Which of the following are facial bones?
1. Vomer
2. Mandible
3. Ethmoid

1, 2, and 3 only

1 and 2 only

2 and 3 only

29.

1 point

Which structure houses the pituitary gland?

foramen magnum

sella turcica

EAM

crista galli

30.

1 point

What does the pneumonic "EAM" represent?

External auditory meatus

External anterior meatus

External acoustic magnum

External anterior mastoid

31.

1 point

What is the name of the articulations between the cranial bones

glabellae

foramina

acanthions

sutures

32.

1 point

Which projection of the facial bones requires the CR to exit the acanthion?

AP axial (Towne method)

PA axial (Caldwell method)

Parietoacanthial (Waters method)

Lateral

33.

1 point

Which of the following cranial bones are paired (right and left)?
1. Frontal
2. Parietal
3. Temporal

2 and 3 only

1 only

1, 2, and 3 only

1 and 2 only

34.

1 point

What is the sella turcica

A large hole in the skull that serves as the passageway for the spinal cord to exit the skull

An accessory sinus that occasionally forms during adolescence

The structure that houses the pituitary gland

The structure that houses the organs for hearing and balance

35.

1 point

A blow-out fracture involves the:

occipital bone

mandible

floor of the orbit

nasal bones

36.

1 point

Which of the following bones contain paranasal sinuses?
1. Frontal
2. Ethmoid
3. Temporal

1 and 2 only

2 and 3 only

1, 2, and 3 only

1 and 3 only

37.

1 point

Which region of the spine is the most common site of pathologic compression fracture of vertebral bodies caused by osteoporosis?

coccyx

lumbar

cervical

thoracic

38.

1 point

A lateral projection of the face using detail screens tabletop (nongrid) is used to demonstrate the:

Orbits

Mandible

Nasal bones

Zygoma

39.

1 point

Which is the only moveable facial bone?

maxillae

zygoma

mandible

lacrimal

40.

1 point

Which facial bone often sustains fractures in pairs?

zygoma

mandible

maxilla

vomer

41.

1 point

How many bones comprise the skull?

14

22

18

31