thigh muscles

iliacus origin

iliac fossa

iliacus insertion

lesser trochanter

iliacus action

flexes thigh

iliacus joint spanned

hip

psoas major/minor origin

lumbar intervertebral discs & lumbar vertebrae

psoas major/minor insertion

lesser trochanter of femur

psoas major/minor action

flexes thigh

psoas major/minor joint spanned

hip

gluteus maximus origin

sacrum coccyx & posterior surface of ilium

gluteus maximus insertion

posterior surface of femur & fascia of thigh

gluteus maximus action

extends thigh @ hip, adducts, lateral rotation

gluteus maximus joint spanned

hip

gluteus medius origin

lateral surface of ilium

gluteus medius insertion

greater trochanter of femur

gluteus medius action

abducts & rotates thigh medially

gluteus medius joint spanned

hip

gluteus minimus origin

lateral surface of ilium

gluteus minimus insertion

greater trochanter

gluteus minimus action

abducts & rotates leg medially

gluteus minimus joint spanned

hip

tensor fascia latae origin

anterior iliac crest

tensor fascia latae insertion

iliotibial band (fascia of thigh)

tensor fascia latae action

abducts, flexes, & rotates thigh medially

tensor fascia latae joint spanned

hip

gracilis origin

inferior pubic ramus

gracilis insertion

medial surface of tibia

gracilis action

adducts thigh & flexes leg @ knee

gracilis joint spanned

hip & knee

adductor brevis/longus/magnus origin

pubic bone & ischial tuberosity

adductor brevis/longus/magnus insertion

posterior medial surface of femur

adductor brevis/longus/magnus action

adduct flex rotate laterally

biceps femoris origin

ischial tuberosity & linea aspera

biceps femoris insertion

fibular head & lateral condyle of tibia

biceps femoris action

flexes knee extends thigh & rotates leg laterally

biceps femoris joint spanned

knee & hip

semitendinosus origin

ischial tuberosity

semitendinosus insertion

medial surface of tibia

semitendinosus action

flexes & rotates knee medially, extends

semitendinosus joint spanned

hip & knee

semimenbranosus origin

ischial tuberosity

semimembranosus insertion

medial condyle of tibia

semimembranosus action

flex & rotate knee medially & extends thigh

semimembranosus joint spanned

hip & knee

sartorius origin

anterior superior iliac spine

sartorius insertion

medial surface of tibia

sartorius action

flexes hip & knee, abducts, rotates hip laterally

sartorius joint spanned

hip & knee

rectus femoris origin

anterior inferior iliac spine & acetabular margin

rectus femoris insertion

upper border of patella & then to tibial tuberosity

rectus femoris action

extends knee

rectus femoris joint spanned

knee

vastus lateralis origin

greater trochanter & posterior surface of femur

vastus lateralis insertion

patella & then to tibial tuberosity

vastus lateralis action

extends leg @ knee

vastus lateralis joint spanned

knee

vastus intermedius origin

anterior & lateral surfaces of femur

vastus intermedius insertion

upper border of patella & then to tibial tuberosity

vastus intermedius action

extends knee

vastus intermedius joint spanned

knee

vastus medialis origin

medial surface of femur

vastus medialis insertion

patella & then to tibial tuberosity

vastus medialis action

extends leg @ knee

vastus medialis joint spanned

knee

muscles that form the quadriceps femoris group

rectus femoris, vastus medialis, vastus lateralis, vastus intermedialis

muscles that form the iliopsoas group

iliacus, psoas major/minor