Question 1

The central-ray angle for a lateral projection of the ankle is:

Accepted Answer

A)  0 degrees. 
B)  5 degrees cephalad. 
C)  7 degrees cephalad. 
D)  10 degrees caudad. 
A)  0 degrees. 
B)  5 degrees cephalad. 
C)  7 degrees cephalad. 
D)  10 degrees caudad.

Question 2

To better demonstrate the TMT joint spaces of the foot, a posterior angulation of how many degrees is required?

Accepted Answer

A)  0 
B)  10 
C)  15 
D)  20 
A)  0 
B)  10 
C)  15 
D)  20

Question 3

The superior portion of the calcaneus contains a groove called the calcaneal sulcus. The inferior portion of the talus contains a matching groove called the sulcus tali. Collectively, these two sulci form the:

Accepted Answer

A)  trochlea. 
B)  ankle mortise. 
C)  sinus tarsi. 
D)  sustentaculum tali. 
A)  trochlea. 
B)  ankle mortise. 
C)  sinus tarsi. 
D)  sustentaculum tali.

Question 4

Which projections of the foot will best demonstrate the structural status of the longitudinal arch?

Accepted Answer

A)  AP axial 
B)  AP oblique medial rotation 
C)  Lateral (lateromedial) 
D)  Lateral (lateromedial) weight-bearing 
A)  AP axial 
B)  AP oblique medial rotation 
C)  Lateral (lateromedial) 
D)  Lateral (lateromedial) weight-bearing

Question 5

How many degrees are the lower leg and foot rotated for the AP oblique projection of the toes in medial rotation?

Accepted Answer

A)  10 to 15 
B)  20 to 25 
C)  40 to 60 
D)  30 to 45 
A)  10 to 15 
B)  20 to 25 
C)  40 to 60 
D)  30 to 45

Question 6

Which tarsal bone lies directly anterior to the talus?

Accepted Answer

A)  Cuboid 
B)  Navicular 
C)  Medial cuneiform 
D)  Lateral cuneiform 
A)  Cuboid 
B)  Navicular 
C)  Medial cuneiform 
D)  Lateral cuneiform

Question 7

Where should the central ray be directed for a PA projection of the patella?

Accepted Answer

A)  $1 / 2$ inch below the patella 
B)  Midpopliteal area 
C)  Base of the patella 
D)  Apex of the patella 
A)  $1 / 2$ inch below the patella 
B)  Midpopliteal area 
C)  Base of the patella 
D)  Apex of the patella

Question 8

How many phalanges are in the great toe?

Accepted Answer

A)  None 
B)  One 
C)  Two 
D)  Three 
A)  None 
B)  One 
C)  Two 
D)  Three

Question 9

On the anterior surface of the tibia is a prominent process called the:

Accepted Answer

A)  body. 
B)  anterior border. 
C)  tibial tuberosity. 
D)  intercondylar eminence. 
A)  body. 
B)  anterior border. 
C)  tibial tuberosity. 
D)  intercondylar eminence.

Question 10

Often, the leg is too long to fit on one IR for radiographs. Which joint or joints should be included on the IR when the site of a lesion is known?

Accepted Answer

A)  The ankle joint 
B)  The knee joint 
C)  Both joints on two IRs 
D)  The joint closest to the lesion 
A)  The ankle joint 
B)  The knee joint 
C)  Both joints on two IRs 
D)  The joint closest to the lesion

Question 11

The central-ray angulation for a lateral projection of the calcaneus is:

Accepted Answer

A)  0 degrees. 
B)  5 degrees cephalad. 
C)  10 degrees cephalad. 
D)  5 to 10 degrees cephalad. 
A)  0 degrees. 
B)  5 degrees cephalad. 
C)  10 degrees cephalad. 
D)  5 to 10 degrees cephalad.

Question 12

The two flat, superior surfaces of the tibia are called the:

Accepted Answer

A)  tubercles. 
B)  malleoli. 
C)  condyles. 
D)  tibial plateaus. 
A)  tubercles. 
B)  malleoli. 
C)  condyles. 
D)  tibial plateaus.

Question 13

How much is the knee flexed for a lateral projection?

Accepted Answer

A)  5 to 10 degrees 
B)  15 to 20 degrees 
C)  20 to 30 degrees 
D)  30 to 45 degrees 
A)  5 to 10 degrees 
B)  15 to 20 degrees 
C)  20 to 30 degrees 
D)  30 to 45 degrees

Question 14

What anatomy is labeled with the letter C in the image below?

Accepted Answer

A)  Greater trochanter 
B)  Lesser trochanter 
C)  Femoral head 
D)  Femoral neck 
A)  Greater trochanter 
B)  Lesser trochanter 
C)  Femoral head 
D)  Femoral neck

Question 15

Which projections of the ankle are performed on a patient following an inversion or eversion injury?

Accepted Answer

A)  AP and lateral 
B)  AP and both obliques 
C)  AP stress studies 
D)  AP, lateral, and both obliques 
A)  AP and lateral 
B)  AP and both obliques 
C)  AP stress studies 
D)  AP, lateral, and both obliques

Question 16

What is the central-ray angle for an AP projection of the femur?

Accepted Answer

A)  0 degrees 
B)  5 degrees 
C)  7 degrees 
D)  Variable-depending on body habitus 
A)  0 degrees 
B)  5 degrees 
C)  7 degrees 
D)  Variable-depending on body habitus

Question 17

The central-ray angulation for an AP oblique projection of the toes is:

Accepted Answer

A)  0 degrees. 
B)  5 degrees posteriorly. 
C)  10 degrees posteriorly. 
D)  15 degrees posteriorly. 
A)  0 degrees. 
B)  5 degrees posteriorly. 
C)  10 degrees posteriorly. 
D)  15 degrees posteriorly.

Question 18

What is the position of the femoral condyles when the leg is properly positioned for an AP projection?

Accepted Answer

A)  Perpendicular to the IR 
B)  Parallel to the IR 
C)  At a 15- to 20-degree oblique position (laterally) 
D)  At a 15- to 20-degree oblique position (medially) 
A)  Perpendicular to the IR 
B)  Parallel to the IR 
C)  At a 15- to 20-degree oblique position (laterally) 
D)  At a 15- to 20-degree oblique position (medially)

Question 19

Where is the central ray directed for an AP projection of the knee?

Accepted Answer

A)  $1 / 2$ inch above the patellar base 
B)  $1 / 2$ inch above the patellar apex 
C)  $1 / 2$ inch below the patellar base 
D)  $1 / 2$ inch below the patellar apex 
A)  $1 / 2$ inch above the patellar base 
B)  $1 / 2$ inch above the patellar apex 
C)  $1 / 2$ inch below the patellar base 
D)  $1 / 2$ inch below the patellar apex

Question 20

What anatomy is labeled as letter E in the image below?

Accepted Answer

A)  Sinus tarsi 
B)  Tibiotalar joint 
C)  Mortise joint 
D)  Medial malleolus 
A)  Sinus tarsi 
B)  Tibiotalar joint 
C)  Mortise joint 
D)  Medial malleolus

Exam 6: Lower Limb

The central-ray angle for a lateral projection of the ankle is:

To better demonstrate the TMT joint spaces of the foot, a posterior angulation of how many degrees is required?

The superior portion of the calcaneus contains a groove called the calcaneal sulcus. The inferior portion of the talus contains a matching groove called the sulcus tali. Collectively, these two sulci form the:

Which projections of the foot will best demonstrate the structural status of the longitudinal arch?

How many degrees are the lower leg and foot rotated for the AP oblique projection of the toes in medial rotation?

Which tarsal bone lies directly anterior to the talus?

Where should the central ray be directed for a PA projection of the patella?

How many phalanges are in the great toe?

On the anterior surface of the tibia is a prominent process called the:

Often, the leg is too long to fit on one IR for radiographs. Which joint or joints should be included on the IR when the site of a lesion is known?

The central-ray angulation for a lateral projection of the calcaneus is:

The two flat, superior surfaces of the tibia are called the:

How much is the knee flexed for a lateral projection?

What anatomy is labeled with the letter C in the image below?

Which projections of the ankle are performed on a patient following an inversion or eversion injury?

What is the central-ray angle for an AP projection of the femur?

The central-ray angulation for an AP oblique projection of the toes is:

What is the position of the femoral condyles when the leg is properly positioned for an AP projection?

Where is the central ray directed for an AP projection of the knee?

What anatomy is labeled as letter E in the image below?

Preliminary Steps in Radiography

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