Thigh And Leg Muscles

Front 1

Sartorius

Back 1

Or: ASIS
In: proximal, medial tibial shaft, just inferior to the medial condyle of the tibia.
Inn: Femoral
Ac: Flex, lat rotation and abd of thigh, flex and med rotaion of leg.

Front 2

Adductor Brevis

Back 2

Or: Inferior ramus of pubis
In: superior 1/3 of linea aspera of femur
Inn: Obturator
Ac: Add, flex and med rotation

Front 3

Vastas Medialis

Back 3

Or: Linea aspera and distal, med aspect of femur
In: tibial tuberosity
Inn: Femoral
Ac: Ext of leg
Ac: Ext of leg

Front 4

Rectus Femorus

Back 4

Or: AIIS
In: tibial tuberosity
Inn: Femoral
Ac: flex of thigh, ext of leg

Front 5

Adductor Magnus

Back 5

Or: Inferior ramus of pubis, ischium, and ishial tuberosity
In: linea aspera, med supracondylar ridge and Add tubercle of femur
Inn: Obturator, sciatic
Ac: Add of thigh; Inf- flex, med rotation of tigh; post- ext and lat rotation of hip

Front 6

Semitendinosus

Back 6

Or: Ishial tuberosity
In: prox, med tibial shaft, just inf to the med tibial condyle
Inn: sciatic
Ac: ext of thigh with some add and med rotation, flex and med rotation of leg

Front 7

Semimembranosus

Back 7

Or: Ishial tuberosity
In:postero-med, aspect of the med tibial condyle
Inn: sciatic
Ac: Ext of thigh with some add and med rotation, flex and med rotation of leg

Front 8

Biceps Femoris (Long Head)

Back 8

Or: Ishial tuberosity
In: head of fibula and lat condyle of tibia
Inn: Sciatic
Ac: ext with some lat rotation of thigh

Front 9

Biceps Femoris (Short Head)

Back 9

Or: Middle 1/3 of linea asper of femur
In: Head of fibula and lat condyle of tibia
Inn: Sciatic
Ac: Flex and lat rotation of leg

Front 10

Gluteus Maximas

Back 10

Or: Post, med iliac crest, post sacrum and coccyx, aponeurosis of erector spine
In: gluteul tuberosity of femur, iliotibial tract of the fascia lata
Inn: Inf gluteal
Ac: ext, lat rotation of thigh; upper fibers abd the thigh; braces the knee

Front 11

Piriformis

Back 11

Or: Ant sacrum
In: sup border of the greater trochanter of the femur
Inn: Sacral 1,2
Ac: Lat rotation and abd of thigh

Front 12

Gluteus Medius

Back 12

Or: Sup, post surface of the iliam
In: lat surface of greater trochanter
Inn: Sup gluteal
Ac: abd and med rotation of the thigh

Front 13

Gluteus Minimus

Back 13

Or: Inf, post surface of the iliam, deep to medius
In: ant surface of the greater trochanter
Inn: sup gluteal
Ac: abd and med rotation of thigh

Front 14

Tensor Fascia Latae

Back 14

Or: Ant iliac crest, lat portion of the ASIS
In: Iliotibial tract of the fascia lata, about 1/3 of the way down the lat thigh
Inn: sup gluteal
Ac: flex, abd and med rotation of the thigh: tenses the iliotibial tract, stabilizes the knee

Front 15

Psoas Major

Back 15

Or: Body, intervatebral disks, and spinous processes of T12-L5
In: Greater Trochanter
Inn: lumbar 2-3
Ac: flex of lumbar vertebra, flex and lat rotation of thigh

Front 16

Gracilis

Back 16

Or: Pubis symphasis and arch
In: prox, med tibial shaft, inf to med condyle of tibia
Inn: Obtorator
Ac: add, med rotation of thigh; flex and med rotation of leg

Front 17

Vastus Intermedius

Back 17

Or: prox 2/3 of the ant, lat femur
In: Tibial tuberosity
Inn: Femoral
Ac: Ext of leg

Front 18

Iliacus

Back 18

Or: Iliac fossa
In: Tendon of Psoas Major
Inn: femoral
Ac: flex and lat rotation of femur

Front 19

Pectineus

Back 19

Or: Sup ramus of pubis
In: pectineal line of femur
Inn: Femoral
Ac: Add, flex, med rotation of thigh

Front 20

Adductor Longus

Back 20

Or: Ant surface of pubis, inf to pubic tubercle
In: middle 1/3 of linea aspera of femur
Inn: Obturator
Ac: add, flex, med rotation of thigh

Front 21

Vastus Lateralis

Back 21

Or: Greater trochanter and linea aspera
In: Tibial Tuberosity
Inn: Femoral
Acc: ext of leg