06 - Pelvis & Thigh Muscles Flashcards
Action, Origin, Insertion
Action, Origin, Insertion of:
Rectus Femoris
A: extend knee; flex hip
O: AIIS (anterior inferior iliac spine)
I: tibial tuberosity
Action, Origin, Insertion of:
Vastus Intermedius
A: extend knee
O: anterior & lateral shaft of femur
I: tibial tuberosity
Action, Origin, Insertion of:
Vastus Medialis
A: extend knee
O: medial lip of linea aspera
I: tibial tuberosity
Action, Origin, Insertion of:
Vastus Lateralis
A: extend knee
O: lateral lip of linea aspera, gluteal tuberosity, greater trochanter
I: tibial tuberosity
Action, Origin, Insertion of:
Biceps Femoris
A: flex knee; lateral rotate flexed knee; extend hip
O Long-Head: ischial tuberosity
O Short-Head: lateral lip of linea aspera
I: head of fibula
Action, Origin, Insertion of:
Semitendinosus
A: flex knee; medial rotate flexed knee; extend hip
O: ischial tuberosity
I: proximal medial shaft of tibia (pen anserinus tendon of tibia)
Action, Origin, Insertion of:
Semimembranosus
A: flex knee; medial rotate flexed knee; tilt pelvis posteriorly
O: ischial tuberosity
I: posterior aspect medial condyle of tibia
Action, Origin, Insertion of:
Gluteus Maximus
A: extend, lateral rotate, ABduct, ADduct hip
O: coccyx, edge of sacrum, posterior iliac crest, sacrotuberous & sacroilia ligament
I: iliotibial tract, gluteal tuberosity
Action, Origin, Insertion of:
Gluteus Medius
A: flex/extend, lateral/medial rotate, ABduct hip
O: gluteal surface of ilium
I: lateral aspect greater trochanter
Action, Origin, Insertion of:
Gluteus Minimus
A: flex, medial rotate, ABduct hip
O: gluteal surface of ilium below Gluteus Medius
I: anterior aspect greater trochanter
Action, Origin, Insertion of:
Adductor Magnus
A: medial rotate, ADduct, extend hip
O: inferior ramus of pubis, ramus of ischium, ischial tuberosity
I: medial lip of linea aspera, adductor tubercle
Action, Origin, Insertion of:
Adductor Longus
A: medial rotate, ADduct hip
O: pubic tubercle
I: medial lip of linea aspera
Action, Origin, Insertion of:
Adductor Brevis
A: medial rotate, ADduct hip
O: inferior ramus of pubis
I: pectineal line & medial lip of linea aspera
Action, Origin, Insertion of:
Pectineus
A: medial rotate, ADduct hip
O: superior ramus of pubis
I: pectineal line of femur
Action, Origin, Insertion of:
Gracilis
A: flex knee; medial rotate flexed knee
O: inferior ramus of pubis
I: proximal medial tibia shaft (pes anserinus tendon)
Action, Origin, Insertion of:
Tensor Fascia Latae
A: flex, medial rotate, ABduct hip
O: iliac crest posterior to ASIS (anterior superior iliac spine)
I: iliotibial tract
Action, Origin, Insertion of:
Sartorius
A: flex, lateral rotate, ABduct hip; flex knee; medial rotate flexed knee
O: ASIS (anterior superior iliac spine)
I: proximal medial tibia shaft (pes anserinus tendon)
Action, Origin, Insertion of:
Piriformis
A: lateral rotate hip, ABduct hip when flexed
O: anterior surface of sacrum
I: superior aspect greater trochanter
Action, Origin, Insertion of:
Quadratus Femoris
A: lateral rotate hip
O: lateral border of ischial tuberosity
I: intertrochanteric crest
Action, Origin, Insertion of:
Psoas Major
A O-Fixed: flex hip
A I-Fixed: flex trunk to thigh, tilt pelvis anteriorly
O: bodies & TVP (transverse processes) of lumbar spine
I: lesser trochanter
Action, Origin, Insertion of:
Iliacus
A O-Fixed: flex hip
A I-Fixed: flex trunk to thigh, tilt pelvis anteriorly
O: iliac fossa
I: lesser trochanter
