Muscles Of The Lower Limb

Front 1

Quadratus Lumborum

Back 1

Origin: Illiac crest
Insertion: Lumber vertebrae 1-4 and last rib
Action: Lateral flexes trunk

Front 2

Illiacus

Back 2

Origin:Illiac fossa
Insertion: Lesser trochanter
Action: Flexes thigh

Front 3

Psoas Major

Back 3

Origin: Vertebral bodies and intervertebral discs of T12 and L1-5
Insertion: Joins illiacus tendon into the lesser trochanter
Action: Flexes thigh

Front 4

Psoas Minor

Back 4

Origin: T12 &L1
Insertion: Illiopectineal eminence
Action: (weak) flexes trunk

Front 5

Gluteus Maximus

Back 5

Origin: Posterior gluteal line, sacrum and coccyx
Insertion: Gluteal tuberosity and tesor fasciae latae
Action: Extends thigh

Front 6

Gluteus Medius

Back 6

Origin: Between the anterior and posterior gluteal lines
Insertion: Greater trochanter
Action: Abduction of the thigh

Front 7

Gluteus Minimus

Back 7

Origin: Between anterior and inferior gluteal lines
Insertion: Greater trochanter
Action: Abduction of the thigh

Front 8

Tensor Fasciae Latae

Back 8

Origin: Anterior Superior Illiac Spine
Insertion: Illio-tibial band
Action: Create tension of the illio-tibial band (allows Gluteus maximus to act)

Front 9

Outward Rotators

Back 9

Piriformis, Glemellus superior, Obturator internus, Glemellus inferior, Obturator externus and Quadratus femoris

Front 10

Sartorius

Back 10

Origin: Anterior superior illiac spine
Insertion: Medial boarder of tibial tuberosity
Action: flexes of thigh and leg (weak)

Front 11

Rectus Femoris

Back 11

Origin: Anterior Inferior Illiac Spine
Insertion: Patella and tibial tuberosity
Action: Flexes thigh and extends leg

Front 12

Vastus Intermedius

Back 12

Origin: Shaft of femur
Insertion: Patella and tibial tuberosity
Action: Extends leg

Front 13

Vastus Lateralis

Back 13

Origin: Greater trochanter and linea aspera
Insertion: Patella and tibial tuberosity
Action: Extends leg

Front 14

Vastus Medialis

Back 14

Origin: Intertrochantic line
Insertion: Patella and tibial tuberosity
Action: Extends leg

Front 15

Biceps Femoris

Back 15

Long head origin:Ischial tuberosity
Short head origin:Linea Aspera
Insertion: Fibular and lateral condyle of tibia
Action: Flexes leg (long head also extends thigh)

Front 16

Semitendinosus

Back 16

Origin:Ischial tuberosity
Insertion: Medial shaft and condyl of the tibia
Action: Flexes leg and extends thigh

Front 17

Semimembranosus

Back 17

Origin: Ischial tuberosity
Insertion:Medial condyl of tibia
Action: Flexes leg and extends hip

Front 18

Pectineus

Back 18

Origin: Pectineal surface
Insertion: Pectineal line
Action: Adducts and flexes thigh

Front 19

Adductor Longus

Back 19

Origin: Pubic crest and symphasis
Insertion:Linea aspera
Action: Adducts and flexes thigh

Front 20

Adductor Brevis

Back 20

Origin: Inferior ramus of pubis
Insertion: Linea aspera
Action: adducts and flexes thigh

Front 21

Adductor Magnus

Back 21

Origin: Ischial tuberosity and inferior ramus
Insertion: Linear aspera and adductor tubercle
Action: Extends and adducts thigh

Front 22

Gracillis

Back 22

Origin: Pubic symphasis
Insertion: Medial shaft of tibia
Action: Flexes and adducts thigh

Front 23

Tibialis Anterior

Back 23

Origin: Lateral condyl and shaft of tibia
Insertion: 1st Cuneiform and base of 1st metatarsal
Action: Dorsiflexion and inversion of the foot

Front 24

Extensor Hallucis Longus

Back 24

Origin: Shaft of fibular
Insertion: Distal phalanx of hallux
Action: Extends hallux

Front 25

Exensor Digitorum Longus

Back 25

Origin: Lateral condyl and shaft of tibia
Insertion: Middle and distal phalanx of digits 2-5
Action: Extends digits 2-5

Front 26

Peronues Longus

Back 26

Origin: Lateral tibial condyl and fibular head and shaft
Insertion:1st cuneiform and 1st metatarsal
Action: Plantarflexes and everts foot

Front 27

Peroneus Brevis

Back 27

Origin: Shaft of fibular
Insertion: 5th metatarsal
Action: Plantarflexes and everts foot

Front 28

Peroneus Tertius

Back 28

Origin: Shaft of fibular
Insertion: Metatarsal 5
Action: Dorsiflexes foot

Front 29

Gastrocnemious

Back 29

Origin:Medial and lateral femoral condyls
Insertion; Calcaneal tuberosity
Action: Plantarflexes foot and flexes leg

Front 30

Soleus

Back 30

Origin:Head of fibular and soleal line
Insertion: Calcaneal tuberosity
Action: Plantarflexes the foot

Front 31

Plantaris

Back 31

Origin:Lateral femoral condyl and supracondylar line
Insertion: Joins calcaneal tendon
Action: Plantar flexes foot (insignificant)

Front 32

Popliteus

Back 32

Origin:Lateral femoral condyl
Insertion: Medial shaft of tibia
Action: Medially rotates tibia

Front 33

Tibialis Posterior

Back 33

Origin:Interossues membrane
Insertion:Naviculae and cuneiforms 1-3
Action: Inverts foot
(TOM, dick and harry)

Front 34

Flexor Digitorum Longus

Back 34

Origin: Shaft of tibia
Insertion:Distal phalanges 2-5
Action:Flexes digits 2-5
(tom, DICK and harry)

Front 35

Flexor Hallicus Longus

Back 35

Origin: Shaft of fibular
Insertion: Distal phalanx of hallux
Action: Flexes digit 1
(tom, dick and HARRY)

Front 36

Extensor Hallucis Brevis

Back 36

Action: Extends hallux

Front 37

Extensor Digitorum Brevis

Back 37

Action: Extends digits 2-5

Front 38

Plantaris

Back 38

Action: Abducts Hallux

Front 39

Flexor Digitorum Brevis

Back 39

Action: Flexes digits 2-5

Front 40

Abductor Digiti Minimi

Back 40

Action: Abducts digit 5

Front 41

Quadratusplantae (Flexor Accessorius)

Back 41

Action: Flexes digits 2-5

Front 42

Lumbricals

Back 42

Action: Flexes digits 2-5

Front 43

Flexor Hallucis Brevis

Back 43

Origin: Shaft of fibular
Insertion: Distal phalanx of hallux
Action: Flexes digit 1
(tom, dick and HARRY)

Front 44

Adductor Hallucis

Back 44

Action: Adducts digit 1

Front 45

Flexor Digiti Minimi Brevis

Back 45

Action: Flexes digit 5

Front 46

Dorsla interossei

Back 46

Action: Abducts digits 2-4

Front 47

Plantar Interossei

Back 47

Action: Adducts digits 3-5