Bony Thorax

What portion of the rib articulates with the body of the thoracic vertebra?

A. Tubercle

B. Head

C. Neck

D. Angle

All the following structures are part of the bony thorax except the:


a.Scapulae

b. Ribs

c. Sternum

d. Thoracic vertebra

Which patologic condition is characterized by increased density of atypically soft bone?

a. Chondrosarcoma

b. Osteopetrosis

c. Paget's disease

d. Multiple myeloma

The tubercle of the rib articulates with the transverse process of a thoracic vertebra to form a:

a. Costovertebral joint

b. Costotransverse joint

c. Costochondral joint

d. Intercostal joint

The rib pairs classified as true ribs are:


a. 1 and 2

b. 1 through 7

c. 8 through 12

d. 7 through 10

Which ribs are classified as floaating ribs?


a. 1 and 2

b. 6 and 7

c. 11 and 12

d. Floating ribs are not a classification of any of the ribs.

Which of the following objects would the patient be instructed to remove before putting on a gown for imaging examination of the ribs?

(1) Brassiere

(2) Eyeglasses

(3) Pants


A. 1 and 2 only

B. 1 and 3 only

C. 2 and 3 only

D. 1, 2, and 3

The PA Oblique projection of the sternum requires the patient to be positioned in a:

A. 15- 20 degree RAO

B. 15-20 degree LAO

C. 25-30 degree RAO

D. 25-30 degree LAO

How is the patient positioned to demonstrate the right posterior axially ribs?


A. Supine

B. Left Lateral

C. 45- degree RPO

D. 45- degrea RAO

When the patient is positioned in a 10- to 15- degree RAO position, what anatomy is best demonstrated?


A. Left anterior axillary ribs

B. Sternum in contrast to the heart

C. Right SC joint

D. Left SC joint

Which breathing instructions should be given to a patient ot demonstrate the left anterior ribs above the diaphragm?


A. "exhale and hold your breath"

B. "Inhale and hold your breath"

C. "Breathe slowly and shallowly"

D. "Breathe rapidly and deeply"

For the left SC joint to be demonstrated, the patient must be positioned in a :

A. Ture right lateral

B. 45- degree RPO

C. 10- to 15- degree LAO

D. 10- to 15- degree RAO

What is the central ray orientation for the PA oblique projection of the SC joints, central ray angulation method?


A. 15 degrees caudad

B. 15 degrees chepalad

C. 15 degrees toward MSP

D. 15 degrees away from the MSP

The AP projection of the ribs demonstrated the:


A. Left axiallary ribs above the diaphragm (upper ribs)

B. Left axiallary ribs below the diaphragm (lower ribs)

C. Posterior ribs

D. Anterior ribs

What is the central ray entrance point for the lateral projeciton of the sternum?

A. Lateral border of the midsternum

B. MSP at the midsternum

C. Lateral border at the level of T2 - T3

D. MSP at the sternal angle

Where does the central ray enter the patient for the PA oblique projection of the right SC joint?

A. At MSP at the level of T2-T3

B. To the right of the MSP at the level of T2-T3

C. To the left of the MSP at the level of T2 -T3

D. Horizontal and perpendicular to the MCP at the level of T2-T3

Demonstration of the manubrium free of superimposition by the soft tissues of the shoulders is an evaluation criterion of the :

A. lateral projection of the sternum

B. PA oblique projection of the sternum

C. AP oblique porjection of the ribs

D. PA oblique projection of the SC joints, central ray angulation method

How many anterior ribs should be seen above the diaphragm in the PA ribs projection?

A. First through nineth

B. First through seventh

C. Eighth through twelfth

D. Seventh through twelfth

Both SC joints and the medial ends of the clavicles should be demonstrated on the :

A. Lateral sternum

B. PA oblique sternum

C. PA oblique SC joints, body rotation method

D. PA Sc joints

For the PA oblique projection of the right SC joint, central ray angulation method, the patient must be positioned:

A. prone with the head turned to the left

B. prone with the head turned to the right

C.In a 10- to 15- degree RAO with the head resting on the chin

D. In a 10- to 15- degree RAO with the head turned to the right

For the left axillary portion of the ribs to be demonstrated when the patient is supine, the patient must be positioned in a :

A. 45- degree RPO

B. 45- degree LPO

C. 45- degree RAO

D. 45- degree LAO

What is the applicaiton of the PA oblique projection (Moore method) as a special projection of the sternum?

A. to demonstrate dislocation of the manubriosternal joint

B. to demonstrate rheumatiod spondylitis in the sternum

C. to increase patient comfort by putting less weight on the sternum

D. to demonstrate the SC joints in a slightly oblique projection

In what special situations might an AP axial projection of the costal joints be ordered?

A. to demonstrate rheumatoid spondylitis of the bony thorax

B. to increase patient comfort and demonstrate the costal joints of the bony thorax

C. to demonstrate dislocation of the costochondral joints of the bony thorax

D. To demonstrate osteopetrosis of the bony thorax

Which special projection of the bony thorax requires the central ray to be angled 20 degrees cephalad?

A. PA oblique (Moore Method), body rotation method

B. PA oblique (Moore Method), central ray angulation method

C. PA axial costal joints

D. AP axial costal joints

What is the advantage of the central ray angulation method of the PA oblique projection of the SC joints over the body rotation method?

A. the central ray angulation method demonstrates the SC joint of interest with less distortion.

B. the central ray angulation method reduces patient radiation dose.

C. the central ray angulation method may be performed with the patient upright to increase comfort for trauma patients.

D. there is no advantage to using the central ray angulation method to demonstrate the SC joints.