Muscles of Hip and Thigh

anterior thigh muscles

sartorious m, rectus femoris m, vastus medialis m, vastus lateralis m, vastus intermedius m

anterior thigh innervations

ALL femoral n

sartorious m action

flex hip (thigh) and flex knee (leg)

rectus femoris m action

flex hip (thigh) and extend knee (leg)

vastus lateralis/medius/intermedius m action

extend knee (leg)

medial thigh muscles

gracilis m, pectineus m, adductor longus m, adductor brevis m, adductor magnus m

medial thigh innervations

ALL obturator nerve, pectineus ONLY also innervates femoral nerve

gracilis m action

adduct hip (thigh)

pectineus m action

adduct hip (thigh) and flex hip (thigh)

adductor longus m action

adduct hip (thigh)

adductor brevis m action

adduct hip (thigh)

adductor magnus m action

adduct hip (thigh)

posterior thigh muscles

biceps femoris m (short head and long head), semitendinosus m, semimembranosus m

posterior thigh innervations

all tibial nerve EXCEPT biceps femoris m short head (common fibular nerve)

biceps femoris m (long head) action

extend hip (thigh) and flex knee (leg)

biceps femoris m (short head) action

flex knee (leg)

semitendinosus m action

extend hip (thigh) and flex knee (leg)

semimembranosus m action

extend hip (thigh) and flex knee (leg)

gluteus maximus m action

extend hip (thigh), laterally rotate hip (thigh)

gluteus medius m action

abduct hip (thigh)

gluteus minimus m action

abduct hip (thigh)

gluteus maximus m innervation

inferior gluteal nerve

gluteus medius/minimus m and tensor fasciae latae m innervation

superior gluteal nerve

tensor fasciae latae m actions

flex hip (thigh) and abduct hip (thigh)

piriformis m action

laterally rotate hip (thigh)

psoas major m action

flex hip (thigh) and flex trunk

iliacus m action

flex hip (thigh) and flex trunk

psoas major m innervation

lumbar spinal nerves

iliacus m innervation

femoral nerve