lower extremity

Question 1

how many bones are in the foot

Answer 1

26

Question 2

how many tarsal bones are in the foot

Answer 2

7

Question 3

what is the largest tarsal bone

Answer 3

calcaneus

Question 4

what are the seven bones tarsal bones

Answer 4

calcaneus, talus, navicular, cuboid, three cuniforms

Question 5

what is the second largest tarsal bone

Answer 5

talus

Question 6

where is the CR for a AP or AP axial foot

Answer 6

perpendicular to base of 3rd metatarsal

Question 7

where is the CR for a axial calcaneus

Answer 7

40 degrees cephalic, enters plantar surface at base of third metatarsal

Question 8

what is another name for axial calcaneus

Answer 8

planto dorsal

Question 9

what is another name for calcaneus

Answer 9

oscalsis

Question 10

where is the CR for AP ankle

Answer 10

perpendicular through ankle to midway between the malleoli

Question 11

where is the CR for a LAT ankle

Answer 11

perpendicular to medial malleolus

Question 12

how much do you angle the foot for a AP oblique mortise joint

Answer 12

leg and foot rotated medially 15 to 20 degrees

Question 13

what is a jones fracture

Answer 13

an avulsion fracture of the base of the fifth metatarsal

Question 14

what is a potts fracture

Answer 14

avulsion fracture of the lower part of the medial malleolus with loss of ankle mortise

Question 15

how many bones are in the leg

Answer 15

two

Question 16

what are the names of the two bones of the leg

Answer 16

tibia and fibula

Question 17

the tibia is located on medial or lateral side

Answer 17

medial

Question 18

the fibula is located on medial or lateral side

Answer 18

lateral

Question 19

where is the CR for a AP tib/fib (leg)

Answer 19

perpendicular to center of leg

Question 20

what is the largest bone in the body

Answer 20

femur

Question 21

the head of the femur articulates with

Answer 21

acetabulum of pelvis

Question 22

where is the CR for a AP knee

Answer 22

1/2 inch below patella

Question 23

how much should the knee be flexed for a LAT knee

Answer 23

20 - 30 degrees

Question 24

camp coventry method is also known as

Answer 24

PA axial tunnel intercondylar fossa

Question 25

how much is the knee flexed for the PA axial tunnel intercondylar fossa

Answer 25

40 to 50 degrees

Question 26

where is the CR for camp coventry method

Answer 26

perpendicular to long axis of leg, angle tube 40 to 50 degrees to the flexed knee

Question 27

how should the leg be placed for a AP proximal femur

Answer 27

limb rotated internally 15 to 20 degrees to place femoral necks in profile

Question 28

the top of the IR for a AP femur proximal is at

Answer 28

the ASIS

Question 29

where is the bottom of the IR for a AP femur distal

Answer 29

2 inches below the knee

Question 30

where are some of the common sites a hip can fracture

Answer 30

neck of the femur, anatomical neck of the femur, greater trochanter, lesser trochanter, intertrochanter crest,

Question 31

what are the parts of the pelvis

Answer 31

ilium, ishium, pubis, sacrum, coccyx

Question 32

what is unique about the male pelvis

Answer 32

heavier, narrower, deeper, angle at pubic symphysis is acute

Question 33

what is unique about the female pelvis

Answer 33

wider, shallower, lighter, angle at pubic symphysis is obtuse

Question 34

what are other names for the hip bones

Answer 34

ox coxae, innominate

Question 35

the acetabulum articulates with

Answer 35

head of the femur

Question 36

how much of the ilium make up the acetabulum

Answer 36

2/5

Question 37

how much of the ischium make up the acetabulum

Answer 37

2/5

Question 38

how much of the pubis make up the acetabulum

Answer 38

1/5

Question 39

how much do you rotate the limb for a AP hip

Answer 39

15 - 20 degrees

Question 40

true or false : if the patient has a hip replacement the whole entire prosthetic must be in the film

Answer 40

true

Question 41

sacroiliac joint (SI)

Answer 41

articulation between the right and left ilia and the sacrum ; irregular, gliding type

Question 42

pubic symphysis

Answer 42

junction of right and left pubic bones in the midline ; cartilaginous, slightly movable joint

Question 43

for a AP pelvis how much are the feet inverted

Answer 43

15-20 degrees

Question 44

how much should the heels be abducted for a AP pelvis

Answer 44

8-10 inches

Question 45

osgood-schlatter

Answer 45

incomplete separation or avulsion of tibial tuberosity. common in young soccer players

Question 46

osteomalacia or rickets

Answer 46

softening of the bones due to vitamin D deficiency ;

Question 47

osteoporosis

Answer 47

disease in which bones become fragile and more likely to fracture, usually the bon loses density

Question 48

bone cyst

Answer 48

fluid dilled hole that develops inside a bone

Question 49

how many bones are in the leg

Answer 49

2

Question 50

what is the central-ray angulation for the axial (plantodorsal) projection of the calcaneus

Answer 50

40 degrees

Question 51

the central ray is directed to which of the following for an AP or AP axial projection of the foot

Answer 51

base of the third metatarsal

Question 52

for an axial projection of the calcaneus, the ankle should be dorsiflexed so the plantar surface of the foot is

Answer 52

90 degrees from the plane of the IR

Question 53

the superior surface of the foot is termed the

Answer 53

dorsal surface

Question 54

where is the fibula be located on a properly positioned lateral radiograph of the ankle

Answer 54

over the posterior half of the tibia

Question 55

the two flatline superior surfaces of the tibia are called the

Answer 55

tibial plateaus

Question 56

an avulsion fracture of the base of the fifth metatarsal is called a ______ fracture

Answer 56

jones

Question 57

where should the CR enter the patient for the AP projection of the knee

Answer 57

1/2 inch below the apex of the patella

Question 58

what is the name given to the distal end of the fibula

Answer 58

lateral malleolus