Lower Extremities - Muscles

Front 1

Psoas

Back 1

"Attachments- from anterior lumbar transverse process vertebral bodies and discs to the lesser trochanter of the femur.

Front 2

Rectus femoris

Back 2

"Attachments- from anterior inferior iliac spine and groove superior to the acetabulum to the base of the patella.

Front 3

Sartorius

Back 3

"Attachments- from anterior superior iliac spine to the medial aspect of the proximal tibia.

Front 4

Tensor fasciae latae

Back 4

"Attachments- from anterior superior iliac spine and adjacent iliac crest to the iliotibial tract.

Front 5

Vastus intermedius

Back 5

"Attachments- from anterior aspect of the proximal 2/3rds of the femoral shaft to the base of the patella.

Front 6

Vastus lateralis

Back 6

"Attachments- from lateral/posterior femur to the lateral border of the patella.

Front 7

Vastus medialis

Back 7

"Attachments- from medial/posterior femur to the medial border of the patella.

Front 8

Adductor brevis

Back 8

"Attachments- from inferior pubis ramus to proximal posterior femur.

Front 9

Adductor longus

Back 9

"Attachments- from pubic crest to midshaft posterior femur.

Front 10

Adductor magnus

Back 10

"Attachments- from ischial tuberosity to posterior femur & adductor tubercle.

Front 11

Gracilis

Back 11

"Attachments- from inferior pubic ramus to the proximal, medial tibia.

Front 12

Pectineus

Back 12

"Attachments- from superior pubic ramus to the proximal posterior femoral shaft.

Front 13

Obturator externus

Back 13

"Attachments- from external aspect of the obturator foramen to the trochanteric fossa.

Front 14

Gemellus inferior

Back 14

"Attachments- from the ischial tuberosity to the obturator internus tendon.

Front 15

Gemellus superior

Back 15

"Attachments- from the ischial spine to the obturator internus tendon.

Front 16

Gluteus maximus

Back 16

"Attachments- from the aponeurosis of the erector spinae, sacrum, sacrotuberous ligament & posterior gluteal line to the (inominate) to the gluteal tuberosity of the femur & the iliotibial tract.

Front 17

Gluteus medius

Back 17

"Attachments- from the external iliac surface to the lateral aspect of the greater trochanter.

Front 18

Gluteus minimis

Back 18

"Attachments- from the external iliac surface to the anterolateral aspect of the greater trochanter.

Front 19

Obturator internus

Back 19

"Attachments- from the anterolateral wall of the pelvis & obturator membrane to the medial surface of the greater trochanter.

Front 20

Piriformis

Back 20

"Attachments- from the anterolateral sacrum to the upper border of the greater trochanter.

Front 21

Quadratus femoris

Back 21

"Attachments- from the ischial tuberosity to the quadrate tubercle of the femur

Front 22

Biceps femoris

Back 22

"Attachments- from the ischial tuberosity (long head) & the distal posterior lateral femur (short head) to the fibular head.

Front 23

Semimembranosus

Back 23

"Attachments- from the ischial tuberosity to the posterior aspect of the medial tibial condyle.

Front 24

Semitendinosus

Back 24

"Attachments- from the ischial tuberosity to the proximal medial tibia.

Front 25

Extensor digitorum longus

Back 25

"Attachments- from the lateral tibial condyle proximal fibula, & interosseous membrane to the dorsal digital expansions of toes 2-5.

Front 26

Extensor hallucis longus

Back 26

"Attachments- from the mid-fibula & interosseous membrane to the distal phalangeal base of the 1st toe.

Front 27

Peroneus tertius

Back 27

"Attachments- from the distal fibula & interosseous membrane to the base of the 5th metatarsal.

Front 28

Tibialis anterior

Back 28

"Attachments- from the lateral condyle and proximal lateral tibia & interosseous membrane to the medial cuneiform & adjacent 1st metatarsal.

Front 29

Peroneus longus

Back 29

"Attachments- from the head and proximal fibula to the lateral aspects of the 1st metatarsal & adjacent medial cuneiform.

Front 30

Peroneus brevis

Back 30

"Attachments- from the distal fibula to the lateral base of the 5th metatarsal.

Front 31

Flexor digitorum longus

Back 31

"Attachments- from the posterior tibia distal to the soleal line to the plantar surfaces of distal phalangeal bases.

Front 32

Flexor hallucis longus

Back 32

"Attachments- from the distal posterior fibular surface & interosseous membrane to the plantar aspect of the distal phalangeal base of the 1st toe.

Front 33

Gastrocnemius

Back 33

"Attachments- from the posterior aspect of the femoral condyles to the calcanial tuberosity.

Front 34

Plantaris

Back 34

"Attachments- from the lateral supracondylar line to the calcanial tuberosity.

Front 35

Popliteus

Back 35

"Attachments- from the lateral femoral condyle to the soleal line of the tibia.

Front 36

Soleus

Back 36

"Attachments- from the posterior proximal fibula & tibial soleal line to the calcaneal tuberosity.

Front 37

Tibialis posterior

Back 37

"Attachments- from the interosseous membrane, lateral tibia & medial fibula to the medial tarsals & metatarsals

Front 38

Abductor digiti minimi

Back 38

"Attachments- from the calcaneal tuberosity to the lateral side of of the proximal phalangeal base of the 5th digit.

Front 39

Abductor hallucis

Back 39

"Attachments- from the medial calcaneal tuberosity to the medial side of the proximal phalangeal base of the great toe.

Front 40

Adductor hallucis

Back 40

"Attachments- from the 2nd - 4th metatarsal bases (oblique head) & distal ends of 3rd - 5th metatarsals (transverse head) to the lateral base of the proximal phalanx of the great toe.

Front 41

Extensor digitorum brevis

Back 41

"Attachments- from the anterolateral calcaneous to the lateral sides of the tendons of the extensor digitorum longus (2-4)

Front 42

Extensor hallucis brevis

Back 42

"Attachments- from the anterolateral calcaneous to the dorsal aspect of the base of the proximal phalanx of the great toe.

Front 43

Flexor digitorum accessorius

Back 43

"Attachments- from the medial surface of the calcaneus & lateral process of the calcaneal tuberosity to the long flexor tendons.

Front 44

Flexor digitorum brevis

Back 44

"Attachments- from the medial process of the calcaneal tuberosity to the sides of the intermediate phalanges of digits 2-5.

Front 45

Flexor digiti minimi

Back 45

"Attachments- from the 5th metatarsal base to the proximal phalangeal base.

Front 46

Flexor hallucis brevis

Back 46

"Attachments- from the cuboid & tendon of tibialis posterior to the base of the proximal phalanx of the great toe.

Front 47

Interossei-dorsal

Back 47

"Attachments- from the metatarsal shafts to the proximal phalangeal bases & dorsal digital expansions of digits 2-4

Front 48

Interossei-plantar

Back 48

"Attachments- from the plantar surface of the shaft of the metatarsals to the dorsal digital expansions of the digits 3-5

Front 49

Lumbricals

Back 49

"Attachments- from the tendons of the flexor digitorum longus to the medial sides of the dorsal expansions of digits 2-5