Module 8 Muscles Flashcards
Iliacus - Innervation
Femoral nerve
Iliacus - origin
Iliac fossa
Iliacus - insertion
Lesser trochanter
Iliacus - actions
With origin fixed:
FLEX the coxal joint
May LATERALLY FLEX the coxal joint
With insertion fixed:
FLEX the trunk toward the thigh
TILT the pelvis ANTERIORLY
Psoas Major - Innervation
Lumbar plexus
Psoas Major - origin
Bodies and transverse processes of lumbar vertebrae
Psoas Major - insertion
Lesser trochanter
Psoas Major - actions
With origin fixed:
FLEX the coxal joint
May LATERALLY ROTATE coxal joint
With insertion fixed:
FLEX the trunk toward the thigh
TILT the pelvis ANTERIORLY
Unilaterally: assist to LATERALLY FLEX the lumbar spine
Piriformis - Innervation
Sacral plexus
Piriformis - origin
Anterior surface of sacrum
Piriformis - insertion
Superior aspect of greater trochanter
Piriformis - actions
LATERALLY ROTATE the coxal joint
ABDUCT the coxal joint when the hip is flexed
Quadratus Femoris - Innervation
Sacral plexus
Quadratus Femoris - origin
Lateral border of Ischial tuberosity
Quadratus Femoris - insertion
Intertrochanteric crest between the greater and lesser trochanters
Quadratus Femoris - actions
LATERALLY ROTATE the coxal joint
Obturator Internus - Innervation
Sacral plexus