muscle 2: origin, insertion, action

external abdominal oblique origin

anterior surface of lower 8 ribs

external abdominal oblique insertion

abdominal aponeurosis

external abdominal oblique action

lateral flexion of trunk

internal abdominal oblique origin

inguinal ligament

internal abdominal oblique insertion

abdominal aponeurosis

internal abdominal oblique action

lateral flexion of trunk

transverse abdominis origin

inguinal ligament

transverse abdominis insertion

abdominal aponeurosis

transverse abdominis action

compression of abdominal cavity

rectus abdominis origin

pubic symphysis

rectus abdominis insertion

xiphoid processes

rectus abdominis action

compression of abdominal cavity

gluteus maximus origin

posterior ilium

gluteus maximus insertion

gluteal tuberosity of femur

gluteus maximus action

abduction of thigh

gluteus medius origin

lateral surface of ilium

gluteus medius insertion

greater trochanter of femur

gluteus medius action

abduction of thigh

sartorius origin

ASIS

sartorius insertion

medial, proximal shaft of tibia

sartorius action

abduction of thigh

iliopsoas: psoas major/iliacus origin

iliac fossa & crest

iliopsoas: psoas major/iliacus insertion

lesser trochanter of femur

iliopsoas: psoas major/iliacus action

abduction of thigh

tensor fasciae latae origin

ASIS

tensor fasciae latae insertion

iliotibial tract

tensor fasciae latae action

abduction of thigh

biceps femoris origin

ischial tuberosity

biceps femoris insertion

head of fibula

biceps femoris action

knee flexion

semimembranosus origin

ischial tuberosity

semimembranosus insertion

medial condyle of tibia

semimembranosus action

knee flexion

semitendinosus origin

ischial tuberosity

semitendinosus insertion

medial, anterior, proximal shaft of tibia

semitendinosus action

knee flexion

rectus femoris origin

AIIS

rectus femoris insertion

patella

rectus femoris action

knee extension

vastus medialis origin

linea aspera

vastus medialis insertion

patella

vastus medialis action

knee extension

vastus lateralis origin

linea aspera

vastus lateralis insertion

patella

vastus lateralis action

knee extension

vastus intermedius origin

lateral shaft of femur

vastus intermedius insertion

patella

vastus intermedius action

knee extension

gracilis origin

inferior ramus and body of pubis

gracilis insertion

proximal, medial tibia

gracilis action

adduction of thigh

adductors origin

body of pubis

adductors insertion

gluteal tuberosity

adductors action

adduction of thigh

gastrocnemius origin

medial, lateral condyles of femur

gastrocnemius insertion

calcaneus via calcaneal tendon

gastrocnemius action

plantar flexion of ankle

tibialis anterior origin

lateral condyle of tibia

tibialis anterior insertion

first metatarsal

tibialis anterior action

dorsiflexion of ankle