CBIO 2200 - Muscle Actions

gluteus maximus

extend thigh

gluteus minimus

abduct thigh

gluteus medius

abduct thigh

Iliopsoas

flex thigh, laterally rotate thigh; flex torso

tensor fascia latae

flex thigh, abduct thigh

pectineus

adduct thigh, flex thigh, medially rotate thigh

adductor brevis

adduct thigh, flex thigh

adductor longus

adduct thigh, flex thigh, medially rotate thigh

adductor magnus

adduct thigh, extend thigh, medially rotate thigh

gracilis

adduct thigh; flex knee

sartorius

flex thigh, abduct thigh, laterally rotate thigh; flex knee

rectus femoris

flex thigh; extend knee

vastus lateralis

extend knee

vastus intermedius

extend knee

vastus medialis

extend knee

Biceps femoris

extend thigh, laterally rotate thigh; flex knee

semitendinosus

extend thigh, medially rotate thigh; flex knee

Semimembranosus

extend thigh, medially rotate thigh; flex knee

fibularis longus

plantar flex foot, evert foot

gastrocnemius

plantar flex foot; flex knee

soleus

plantar flex foot

plantaris

plantar flex foot; flex knee

tibialis anterior

dorsiflex foot, invert foot

tibialis posterior

plantar flex foot

flexor digitorum longus

plantar flex foot, invert foot; flex toes

flexor hallucis longus

plantar flex foot; flex big toe