-
- A. Satorius
- - Origin: ilium
- - Insertion: tibia
- - Action: adduct & rotate thigh; extend tibia
- B. Gracilis
- - Origin: pubis/ischium
- - Insertion: tibia
- - Action: adduct thigh; draw thigh posteriorly
-
- A. Semitendinosus
- - Origin: ischium
- - Insertion: tibia
- - Action: flexes leg
-
- A. Semimembranosus
- - Origin: ischium
- - Insertion: femur and tibia
- - Action: extends thigh
-
- A. Adductor femoris
- - Origin: ischium & pubis
- - Insertion: femur
- - Action: adduct thigh
-
- A. Adductor longus
- - Origin: ischium & pubis
- - Insertion: femur
- - Action: adduct thigh
-
- A. Vastus medialis
- - Origin: femur
- - Insertion: patellar ligament
- - Action: extend leg
- *Quadriceps femoris muscles*
-
- A. Rectus femoris
- - Origin: femur
- - Insertion: patellar ligament
- - Action: extend leg
- *Quadriceps femoris muscles*
-
- A. Vastus lateralis
- - Origin: femur
- - Insertion: patellar ligament
- - Action: extend leg
- *Quadriceps femoris muscles*
-
- A. Biceps femoris
- - Origin: iscium
- - Insertion: tibia
- - Action: flexes leg; abducts thigh
-
- A. Caudofemoralis
- - Origin: caudal vertebrae
- - Insertion: patella
- - Action: abducts thigh, flex vertebral column
-
- A. Gluteus maximus
- - Origin: sacral & caudal vertebrae
- - Insertion: femur
- - Action: abducts thigh
-
- A. Gluteus medius
- Origin: ilium, caudal & sacral vertebrae
- Insertion: femur
- Action: abducts thigh
-
- A. Tensor fasciae latae
- Origin: ilium
- Insertion: fascia lata (tough white nerve)
- Action: flex & abduct thigh
-
- A: Caudofemoralis
- B: Gluteus maximus
- C: Gluteus medius
- D: Tensor fasciae latae
- E: Vastus lateralis
-
- A: Semitendinosus
- B: Semimembranosus
- C: Adductor femoris
-
- A: Gastrocnemius
- Origin - femur, knee fascia
- Insertion - calcaneus
- Action - extends foot
- *Plantaris: lies inside medial head of gastorcnemius
- Origin - femur & patella
- Insertion - base of phalanges
- Action - extend foot, flex digits
-
- A: Flexor digitorum longus
- Origin - tibia & fibula
- Insertion - phalanges
- Action - flex toes
- B: Tibialis anterior
- Origin - tibia & fibula
- Insertion - 1st metatarsal
- Action - flex foot
-
- A: Gastrocnemius
- B: Soleus
- O - fibula
- I - calcaneus
- A - extend foot
- C: Fibularis group
- O - fibula
- I - base of metatarsals
- A - one extends foot; others flex foot
- D: Extensor digitorum longus
- O - femur
- I - base of digits
- A - extends digits
- E: Tibialis anterior
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