anterior thigh Flashcards
(11 cards)
muscles of anterior thigh
iliopsoas sartorius pectineus articularis genu quadriceps femoris: rectus femoris vastus lateralis vastus intermedius vastus medialis
main function of iliopsoas
hip flexion
main function of quads
knee extension
iliopsoas
psoas:
O: transverse processes L1-L5, sides of T12-L5
I: lesser trochanter
A: hip flexion and stabilization
N: anterior rami L1-L3
V: lumbar branches of iliolumbar a (from internal iliac)
iliacus: O: iliac crest and iliac fossa I: lesser trochanter A: hip flexion and stabilization N: femoral n V: iliac branches of iliolumbar a
sartorius
O: ASIS
I: proximal part of medial surface of tibia
A: flexes, abducts, and laterally rotates hip; flexes knee
N: femoral n
V: femoral a
pectineus
O: superior ramus of pubis
I: pectineal line of femur
A: adducts and flexes hip, medial rotation of hip
N: femoral n and OBTURATOR N (ANT DIV)
V: MEDIAL CIRCUMFLEX FEMORAL A AND OBTURATOR A
rectus femoris
O: ASIS
I: patella and tibial tuberosity
A: extends knee, stabilizes hip, helps iliopsoas
N: femoral n
V: deep femoral a and lateral circumflex femoral a
vastus lateralis
O: greater trochanter and linea aspera I: patella and tibial tuberosity A: extends knee N: femoral n V: deep femoral a and lateral circumflex femoral a
vastus intermedius
O: anterior and lateral femur shaft I: patella and tibial tuberosity A: extends knee N: femoral n V: deep femoral a and lateral circumflex femoral a
vastus medialis
O: intertrochanteric line and linea aspera I: patella and tibial tuberosity A: extends knee N: femoral n V: femoral a and deep femoral a
articularis genu
O: distal end of anterior femur
I: synovial membrane of knee
A: pulls synovial membrane superiorly during knee extension, preventing compression between femur and patella
