LRA 219 and LRA 220
How many tarsal bones are found in the foot?
7
Which metatarsal bone of the foot has a prominent tuberosity frequently
fractured?
Fifth
Which term describes the top or anterior surface of the foot?
Dorsum
Where would the interphalangeal joint be found in the foot?
Between the phalanges of the first digit
What are the two arches of the foot?
Longitudinal and transverse
The medial malleolus is part of the:
tibia
The cuboid articulates with the 3rd & 4th digits
False
The navicular is located on the lateral aspect of the foot, distal to the calcaneus
and proximal to the 4th and 5th metatarsals
False
How much central ray (CR) angulation should be used for an AP projection of the
foot?
C. 10° to 15° cephalic toward calcaneus
A correctly positioned AP 45° medial oblique foot projection frequently may also
demonstrate a fracture of the base of the fifth metatarsal if present.
True
Which of the following projections of the ankle will best demonstrate the open
joint space of the lateral aspect of the ankle joint?
B. AP mortise projection
True AP projection of the foot demonstrates overlapping at the bases of which
metatarsals
2nd through 5th
What CR angulation is required for the AP oblique projection of the foot?
CR is perpendicular to the IR
How much CR angulation to the long axis of the foot is required for the
plantodorsal (axial) projection of the calcaneus?
40
How much rotation from an AP position of the ankle will typically produce an AP
mortise projection?
15° to 20°
A medial oblique foot projection demonstrates
Superimposition of 1st & 2nd metatarsal
A radiograph of an AP medial oblique projection of the foot, if positioned
correctly, should demonstrate:
third through fifth metatarsals free of superimposition.
How many tarsal bones are found in the foot?
7
Which metatarsal bone of the foot has a prominent tuberosity frequently
fractured?
Fifth
Which term describes the top or anterior surface of the foot?
Dorsum
Where would the interphalangeal joint be found in the foot?
Between the phalanges of the first digit
What are the two arches of the foot?
Longitudinal and transverse
The medial malleolus is part of the:
tibia
The cuboid articulates with the 3rd & 4th digits
False
The navicular is located on the lateral aspect of the foot, distal to the calcaneus
and proximal to the 4th and 5th metatarsals
False
How much central ray (CR) angulation should be used for an AP projection of the
foot?
C. 10° to 15° cephalic toward calcaneus
A correctly positioned AP 45° medial oblique foot projection frequently may also
demonstrate a fracture of the base of the fifth metatarsal if present.
True
Which of the following projections of the ankle will best demonstrate the open
joint space of the lateral aspect of the ankle joint?
B. AP mortise projection
True AP projection of the foot demonstrates overlapping at the bases of which
metatarsals
2nd through 5th
What CR angulation is required for the AP oblique projection of the foot?
CR is perpendicular to the IR
How much CR angulation to the long axis of the foot is required for the
plantodorsal (axial) projection of the calcaneus?
40
How much rotation from an AP position of the ankle will typically produce an AP
mortise projection?
15° to 20°
A medial oblique foot projection demonstrates
Superimposition of 1st & 2nd metatarsal
A radiograph of an AP medial oblique projection of the foot, if positioned
correctly, should demonstrate:
third through fifth metatarsals free of superimposition.
