Muscles of Anterior Thigh

origin and insertion of pectineus

pectin pubis of superior pubic ramus

pectineal line of femur just inferior to lesser trochanter

action and innervation/spinal levels of pectineus

adducts and flexes hip, assists with medial rotation of hip

femoral L2-3

origin and insertion of iliacus

iliac crest, superior 2/3 of iliac fossa, ala of sacrum, and anterior sacroiliac ligaments

tendon of psoas major muscle to lesser trochanter of femur

action and innervation/spinal levels of iliacus

flexes hip, stabilizes hip joint

femoral L2-3

origin and insertion of psoas major

vertebral bodies of T12-L5 and intervertebral discs between them, transverse processes of L1-5

lesser trochanter of femur

action and innervation/spinal levels of psoas major

flexes hip , stabilizes hip joint

ventral rami of L1-3

origin and insertion of sartorius

anterior superior iliac spine (ASIS)

superior part of medial tibia

action and innervation/spinal levels of sartorius

abduction, lateral rotation, flexion of hip, and flexes knee

femoral L2-3,

origin and insertion of rectus femoris

anterior inferior iliac spine (AIIS)

tibial tuberosity via patellar ligament

action and innervation/spinal levels of rectus femoris

flexes hip, extends knee

femoral L2-4

origin and insertion of vastus lateralis

greater trochanter and lateral lip of linea aspera of femur

tibial tuberosity via patellar ligament, lateral patella via retinacula

action and innervation/spinal levels of vastus lateralis

extends knee

femoral L2-4

origin and insertion of vastus medialis

intertrochanteric line and medial lip of linea aspera of femur

tibial tuberosity via patellar ligament, medial patella via retinacula

action and innervation/spinal levels of vastus medialis

extends knee

femoral L2-4

origin and insertion of vastus intermedius

anterior and lateral surfaces of shaft of femur

tibial tuberosity via patellar ligament

action and innervation/spinal levels of vastus intermedius

extends knee

femoral L2-4