Hip/Knee Joint

Question 1

Iliopsoas

Answer 1

O: iliac fossa
I: lesser trochanter of femur
A: flex hip
N: femoral nerve

Question 2

Sartorius

Answer 2

O: ASIS
I: pes anserine
A: flex, ABD, lateral rotation of hip, flex knee
N: femoral nerve

Question 3

Rectus Femoris

Answer 3

O: AIIS
I: tibial tuberosity
A: flex hip, extend knee
N: femoral nerve

Question 4

Pectineus

Answer 4

O: superior ramus of pubis
I: femur, distal to lesser notch
A: flex and ADD hip
N: femoral nerve

Question 5

Gluteus Medius

Answer 5

O: lateral surface of ilium between anterior and posterior gluteal line
I: greater trochanter of femur
A: ABD of hip, medial rotation&flexion (anterior fibers) lateral rotation and extension (posterior fibers)
N: superior gluteal nerve

Question 6

Gluteus Minimus

Answer 6

O: lateral surface of ilium between anterior and inferior gluteal line
I: greater trochanter of femur
A: ABD of hip, medial rotation and flexion of hip
N: superior gluteal nerve

Question 7

Piriformis

Answer 7

O: anterior surface of sacrum
I: greater trochanter of femur
A: lateral rotation of hip, ABD of thigh when hip flexed
N: sacral nerves 1-2

Question 8

Obturator Internus

Answer 8

O: obturator membrane, bone around obturator foramen
I: medial surface of greater trochanter
A: lateral rotation of hip, ABD of thigh when hip flexed
N: obturator internus nerve

Question 9

Tensor Fasciae Latae

Answer 9

O: iliac crest - posterior to ASIS
I: iliotibial tract
A: flex, medial rotation and ABD hip
N: superior gluteal nerve

Question 10

Adductor Longus

Answer 10

O: pubic tubercle
I: medial lip of linea aspera of femur
A: ADD and flex of hip
N: obturator nerve

Question 11

Gluteus Maximus

Answer 11

O: lateral surface of ilium behind posterior gluteal line, posterior sacrum
I: iliotibial tract, gluteal tuberosity of femur
A: extend hip, laterally rotate hip, ADB (upper fibers)
N: inferior gluteal nerve

Question 12

Semitendinosus

Answer 12

O: ischial tuberosity
I: pes anserine
A: extend hip, flex knee, medially rotate knee
N: tibial nerve

Question 13

Semimembranosus

Answer 13

O: ischial tuberosity
I: medial condyle of tibia
A: extend hip, flex knee, medially rotate knee
N: tibial nerve

Question 14

Biceps Femoris (Long Head)

Answer 14

O: ischial tuberosity
I: head of fibula
A: extension of hip, flex knee, laterally rotate knee
N: tibial nerve

Question 15

Adductor Magnus

Answer 15

O: inferior ramus of pubis, ramus of ischium, ischial tubercle
I: linea aspera, adductor tubercle
A: ADD and extension of hip
N: obturator and sciatic nerves

Question 16

Adductor Brevis

Answer 16

O: body and inferior ramus of pubis
I: pectineal line
A: ADD and flex of hip
N: obturator nerve

Question 17

Gracilis

Answer 17

O: inferior ramus of pubis, ramus of ischium
I: pes anserine
A: ADD hip, medially rotate hip if knee flexed, knee flexion
N: obturator nerve

Question 18

Obturator Externus

Answer 18

O: obturator membrane, bone around obturator foramen on external surface
I: trochanteris fossa of the femur
A: lateral rotation of hip
N: obturator nerve

Question 19

Superior Gemellus

Answer 19

O: ischial spine
I: superior border of obturator internus tendon
A: lateral rotation of hip, ABD of thigh when hip flexed
N: nerve to obturator internus

Question 20

Vastus Intermedius

Answer 20

O: anterior + lateral surface of femur
I: tibial tuberosity
A: extend knee
N: femoral nerve

Question 21

Vastus Medialis

Answer 21

O: medial lip of linea aspera
I: tibial tuberosity
A: extend knee
N: femoral nerve

Question 22

Vastus Lateralis

Answer 22

O: lateral lip of linea aspera
I: tibial tuberosity
A: extend knee
N: femoral nerve

Question 23

Biceps Femoris (Short Head)

Answer 23

O: linea aspera of femur
I: head of fibula
A: flex knee, laterally rotate knee
N: common fibular nerve

Question 24

Inferior Gemellus

Answer 24

O: ischial tuberosity
I: inferior surface of obturator internus tendon
A: lateral rotation of hip, ABD of thigh when hip flexed
N: nerve to quadratus femoris