Muscles that move the thigh Flashcards
Origin of the Piriformis
Anterior surface of sacrum
Insertion of piriformis
Upper border of greater trochanter
Action of Piriformis
Laterally rotates and abducts femur
Origin of Quadratus Femoris
Lateral border of Ischial Tuberosity
Insertion of Quadratus Femoris
Quadrate line of femur, below intertrochanteric crest
Quadratus Femoris action
Laterally rotates femur
Origin of Obturator Internus
Internal surface of obturator membrane and margin of obturator foramen
Insertion of Obturator Internus
Medial surface of greater trochanter above trochanteric fossa
Action of Obturator Internus
Lateral rotation and abduction of femur
Origin of Obturator externus
External surface of obturator membrane and superior & inferior of pubic rami
Insertion of Obturator Externus
Trochanteric fossa of femur
Obturator Externus action
Laterally rotates femur
Origin of Superior Gemellus
Ischial spine
Insertion of Superior Gemellus
Obturator Internus tendon
Action of Superior Gemellus
Laterally rotates femur
Origin of Inferior Gemellus
Ischial tuberosity
Insertion of Inferior Gemellus
Obturator Internus tendon
Action of Inferior Gemellus
Laterally rotates femur
Origin of tensor fascia latae
ASIS & iliac crest
Insertion of tensor fascia latae
Iliotibial tract
Action of tensor fascia latae
Flexes abducts and medial rotates femur
Action of tensor fascia latae
Flexes abducts and medial rotates femur
Origin of iliacus
Iliac fossa, and crest ; ala of sacrum
Insertion of iliacus
Lesser trochanter of the femur
Action of iliacus
Flexed thigh - If thigh is fixed it flexes the thigh on the pelvis
Origin of psoas major
Bodies of transverse processes of the lumber spine
Insertion of Psoas major
Lesser trochanter of femur with iliacus via the psoas tendon
Action of Psoas major
Flexes thigh ; flexes and laterally bends the lumbar spine
Origin of psoas minor
Bodies of T12 & L1
Origin of psoas minor
Bodies of T12 & L1
Insertion of Psoas Minor
Iliopubic eminence at the line of junction of the illium and superior pubic ramus
Action of Psoas minor
Flexes & laterally bends the lumbar spine
Origin of Gluteus Maximus
Posterior gluteal line
Posteior surface of sacrum & coccyx
Sacrotuberous ligament
Insertion of Gluteus Maximus
Upper fibers : Iliotibial tract
Lower fibers : Gluteal tuberosity of femur
Action of Gluteus Maximus
Extends and laterally rotates femur
Origin of Gluteus Medius
External surface of ilium between posterior and anterior gluteal lines
Insertion of Gluteus Medius
Greater trochanter
Action of Gluteus Medius
Abducts and medially rotates femur
Origin of Gluteus Minimus
External surface of ilium between posterior and anterior gluteal lines
Insertion of Gluteus Minimus
Greater trochanter
Action of Gluteus Minimus
Abducts and medially rotates femur
Action of Adductor Longus
Adducts, flexes and medially rotates femur
Insertion of Adductor Longus
Linea aspera
Origin Adductor Longus
Medial portion of superior pubic ramus
Action of Adductor Brevis
Adducts, flexes and medially rotates femur
Insertion of Adductor Brevis
Pectineal line
Linea aspera (deep to pectineus and adductor longus)
Origin of Adductor Brevis
Inferior Pubic Ramus
Origin of Adductor Magnus
Ischiopubic ramus & ischial tuberosity
Insertion of Adductor Magnus
Linea aspera &
the ischiocondylar part inserts on the adductor tubercle
Action of Adductor Magnus
Adducts, flexes and medially rotates the femur
the ischiocondylar part extends femur
Origin of Gracilis
Pubic Symphysis and inferior pubic ramus
Insertion of Gracilis
Pes Anserine
Action of Gracilis
Adducts thigh, flexes and medially rotates femur
Flexes leg
Origin of Pectineus
Pecten Pubis
Insertion of Pectineus
Pectineal line of femur
Action of Pectineus
Adducts, flexes adducts and medially rotates femur