MSA3 Hip Muscles

  1. Muscles that extend the hip
    • Gluteus maximus
    • Gluteus medius (posterior)
  2. Muscles that flex the hip
    • Gluteus medius (anterior fibers)
    • Gluteus minimus
    • Psoas major (when origin is fixed; insertion to origin)
    • Iliacus (when origin is fixed; insertion to origin)
    • TFL
  3. Muscles that laterally rotate the hip
    • Gluteus maximus (upper fibers)
    • Psoas major (when origin is fixed; insertion to origin)
    • Iliacus (when origin is fixed; insertion to origin)
    • Piriformis
    • Quadratus Femoris
  4. Muscles that medially rotate the hip
    • Gluteus medius (anterior fibers)
    • Gluteus minimus
    • TFL
  5. Muscles that abduct the hip
    • Gluteus maximus (upper fibers)
    • Gluteus medius (all fibers)
    • Gluteus minimus
    • TFL
  6. Muscles that adduct the hip
    Gluteus maximus (lower fibers- not primary)
  7. Muscles that flex the trunk
    • Psoas major (insertion fixed; origin to insertion)
    • Iliacus (insertion fixed; origin to insertion)
  8. Gluteus Maximus
    • Postural muscle
    • Origin: coccyx, posterior sacrum, posterior iliac crest, sacrotuberous ligament, sacroiliac ligament
    • Insertion: iliotibial tract (upper fibers), gluteal tuberosity (lower fibers)
    • Actions: extends hip, laterally rotates hip, abducts hip (upper), adducts hip (lower- not primary)
    • NR
    • Superficial
  9. Gluteus medius
    • (similar to deltoid)
    • Origin: External surface of ilium between posterior and anterior gluteal lines, just below the iliac crest
    • Insertion: Lateral aspect of the greater trochanter of femur
    • Actions: Abducts hip (all fibers), extends hip (posterior), laterally rotates hip (posterior), flexes hip (anterior), medially rotates hip (anterior)
    • NR
    • Both- deep to gluteus maximus
  10. Psoas major
    • Origin: Bodies and TVPs of lumbar vertebrae
    • Insertion: lesser trochanter of femur
    • Actions, origin fixed: flexes hip (primary hip flexor), may laterally rotate hip
    • Actions, insertion fixed: flexes the trunk, tilts pelvis anteriorly
    • Actions, unilaterally: assists with lateral flexion of lumbar spine
    • NR
    • D
  11. Iliacus
    • Origin: Iliac fossa
    • Insertion: lesser trochanter of femur
    • Actions, origin fixed: flexes the hip, may laterally rotate the hip
    • Actions, insertion fixed: flexes the trunk, tilts pelvis anteriorly
    • NR
    • D
  12. TFL (Tensor Fasciae Latae)
    • Origin: External iliac crest, posterior to ASIS
    • Insertion: Iliotibial tract
    • Actions: flexes, medially rotates and abducts hip (femur)
    • NR
    • S
  13. Piriformis
    • Origin: Anterior sacrum, distal to SI joint
    • Insertion: superior aspect of the greater trochanter
    • Actions: abducts femur when hip is flexed, laterally rotates hip
    • Ropy at trochanter
    • Deep
  14. Quadratus Femoris
    • Origin: Lateral border of ischial tuberosity
    • Insertion: between greater and lesser trochanters of posterior femur
    • Actions: lateral rotation of hip
    • NR
    • Deep
Author
barbostick
ID
89616
Card Set
MSA3 Hip Muscles
Description
Hip Muscles
Updated