Uic Lower Limb - Hip & Thigh

Front 1

Gluteus Maximus

Back 1

O: Ilium sacrum, coccyx, sacrotuberous ligament

I: Iliotibial tract, gluteal tuberosity of femur

Hint 1

N: Inferior Gluteal (L5, S1, S2)

A: Extends and laterally rotates thigh. Stabilizes knee via IT tract. Upper fibers abduct thigh. Lower fibers adduct thigh.

Front 2

Gluteus Medius

Back 2

O: Outer surface of ilium

I: Lateral surface of greater trochanter

Hint 2

N: Superior Gluteal (L4, L5, S1)

A: Abducts thigh at hip. Anterior fibers medially rotate and flex thigh. Posterior fibers laterally rotate and extend thigh.

Front 3

Gluteus Minimus

Back 3

O: Outer surface of ilium inferior to attachment of gluteus medius

I: Anterior surface of greater trochanter

Hint 3

N: Superior Gluteal (L4, L5, S1)

A: Abducts and medially rotates thigh

Front 4

Tensor Fasciae Latae

Back 4

O: Iliac crest - adjacent to the ASIS

I: Iliotibial tract

Hint 4

N: Superior Gluteal (L4, L5, S1)

A: Flexes, abducts and medially rotates thigh

Front 5

Piriformis

Back 5

O: Pelvic edge of sacrum

I: Greater trochanter of femur

Hint 5

N: Nerve to Piriformis (S1, S2)

A: Laterally rotates thigh at hip

Front 6

Obturator Internus

Back 6

O: Obturator membrane and foramen (inner surface)

I: Greater trochanter of femur

Hint 6

N: Nerve to Obturator Internus (L5, S1, S2)

A: Laterally rotates thigh at hip

Front 7

Gemellus Superior

Back 7

O: Ischial spine

I: Obturator Internus tendon

Hint 7

N: Nerve to Obturator Internus (L5, S1, S2)

A: Laterally rotates thigh at hip

Front 8

Gemellus Inferior

Back 8

O: Ischial tuberosity

I: Obturator Internus tendon

Hint 8

N: Nerve to Quadratus Femoris (L4, L5, S1)

A: Laterally rotates thigh at hip

Front 9

Quadratus Femoris

Back 9

O: Ischial tuberosity

I: Intertrochanteric crest of femur

Hint 9

N: Nerve to Quadratus Femoris (L4, L5, S1)

A: Laterally rotates thigh at hip

Front 10

Biceps Femoris

Back 10

O:
LONG HEAD: Ischial tuberosity and sacrospinous ligament
SHORT HEAD: Linea aspera to the lateral supra-condylar line of femur

I: Head of fibula, lateral tibial condyle

Hint 10

N:
LONG HEAD: Tibial division of Sciatic (L5, S1, S2)
SHORT HEAD: Common fibular division of sciatic (L5, S1, S2)

A: Flexes leg at knee, rotates leg medially when knee is flexed; Long Head also extends thigh

Front 11

Semitendinosus

Back 11

O: Ischial tuberosity

I: Superomedial tibia at pes anserine

Hint 11

N: Tibial division of sciatic (L5, S1, S2)

A: Flexes leg at knee, rotates leg medially when knee is flexed, extends thigh

Front 12

Semimembranosus

Back 12

O: Ischial tuberosity

I: Posterior aspect of medial tibial condyle, popliteal fascia and oblique popliteal ligament

Hint 12

N: Tibial division of sciatic (L5, S1, S2)

A: Flexes leg at knee, rotates leg medially when knee is flexed, extends thigh

Front 13

Psoas Minor

Back 13

O: T12 - L1 vertebrae and discs

I: Pectin pubis, iliopubic ramus, iliac fascia

Hint 13

N: Ventral rami L1, L2

A: Flexes trunk

Front 14

Psoas Major

Back 14

O: T12 - L5 vertebrae, discs and transverse processes

I: Lesser trochanter of femur

Hint 14

N: Ventral rami L1 - L4

A: Flexes thigh at hip, flexes trunk if thigh is stabilized

Front 15

Iliacus

Back 15

O: Iliac crest and fascia

I: Pes anserine of tibia

Hint 15

N: Femoral (L2, L3, L4)

A: Flexes thigh at hip; Flexes trunk if thigh is stabilized

Front 16

Sartorius

Back 16

O: ASIS

I: Pes anserine of tibia

Hint 16

N: Femoral (L2, L3)

A: Flexes, abducts and laterally rotates thigh at hip; Flexes leg at knee

Front 17

Rectus Femoris

Back 17

O: AIIS

I: Tibial tubercle via patellar ligament

Hint 17

N: Femoral (L2, L3, L4)

A: Extends leg at knee; Flexes thigh at hip

Front 18

Vastus Lateralis

Back 18

O: Greater trochanter, lateral lip of linea aspera

I: Tibial tubercle via patellar ligament

Hint 18

N: Femoral (L2, L3, L4)

A: Extends leg at knee

Front 19

Vastus Medialis

Back 19

O: Intertrochanteric line; medial lip of linea aspera

I: Tibial tubercle via patellar ligament

Hint 19

N: Femoral (L2, L3, L4)

A: Extends leg at knee

Front 20

Vastus Intermedius

Back 20

O: Anterolateral shaft of femur

I: Tibial tubercle via patellar ligament

Hint 20

N: Femoral (L2, L3, L4)

A: Extends leg at knee

Front 21

Articularis Genu

Back 21

O: From distal fibers of Vastus Intermedius

I: Suprapatellar recess of articular capsule

Hint 21

N: Femoral (L2, L3, L4)

A: Prevents entrapment of joint capsule during knee extension

Front 22

Obturator Externus

Back 22

O: Obturator membrane and foramen (outer surface)

I: Trochanteric fossa of femur

Hint 22

N: Obturator (L3, L4), posterior branch

A: Laterally rotates and mildly adducts thigh

Front 23

Pectineus

Back 23

O: Pecten pubis

I: Pectineal line of femur

Hint 23

N: Femoral (L2, L3), Obturator (L2, L3)

A: Adducts and flexes thigh

Front 24

Adductor Longus

Back 24

O: Superior ramis and symphysis of pubis

I: Medial lip of linea aspera of femur

Hint 24

N: Obturator (L2, L3, L4), anterior branch

A: Adducts and flexes thigh

Front 25

Adductor Brevis

Back 25

O: Inferior ramus of pubis

I: Pectineal line and linea aspera of femur

Hint 25

N: Obturator (L2, L3), anterior branch

A: Adducts and flexes thigh

Front 26

Adductor Magnus (Hamstring/Ischiocondylar Portion)

Back 26

O: Ischial tuberosity

I: Adductor tubercle of medial epicondyle of femur

Hint 26

N: Tibial portion of Sciatic (L4, L5)

A: Adducts and EXTENDS thigh

Front 27

Adductor Magnus (Adductor Portion)

Back 27

O: Ramus of ischium and pubis

I: Gluteal tuberosity and medial lip of linea aspera

Hint 27

N: Obturator (L2, L3, L4), posterior branch

A: Adducts and FLEXES thigh

Front 28

Gracilis

Back 28

O: Body and inferior ramus of pubis

I: Pes anserine of tibia

Hint 28

N: Obturator (L2, L3)

A: Adducts thigh; Flexes and medially rotates leg