Define Iliopsoas Muscle Terms Flashcards

Action: Flexes thigh Origin: iliac fossa Insertion: lesser trochanter of femur with psoas major Innervation: femoral nerve (L2-L3 fibers)

Action: Flexes thigh Origin: transverse processes and bodies of T12-L5 vertebrae Insertion: lesser trochanter of femur with iliacus Innervation: branches of lumbar plexus (L2-L3)

Action: extends thigh; laterally rotates thigh Origin: iliac crest, sacrum, coccyx Insertion: iliotibial tract of fascia lata; linea aspera and gluteal tuberosity of femur Innervation: inferior gluteal nerve (L5-S2)

Action: abducts thigh; medially rotates thigh Origin: posterior iliac crest; lateral surface between posterior and anterior gluteal lines Insertion: greater trochanter of femur Innervation: superior gluteal nerve (L4-S1)

Action: Abducts thigh; medially rotates thigh Origin: lateral sruface of ilium between inferior and anterior gluteal lines Insertion: greater trochanter of femur Innervation: superior gluteal nerve (L4-S1)

Action: abducts thigh; medially rotates thigh Origin: iliac crest and lateral surface of anterior superior iliac spine Insertion: iliotibial band Innervation: superior gluteal nerve (L4-S1)

Action: Laterally rotates thigh Origin: anterolateral surface of sacrum Insertion: greater trochanter Innervation: nerve to piriformis (S1-S2)

Action: adducts thigh; flexes thigh Origin: pectineal line of pubis Insertion: pectineal line of femur Innervation: obturator nerve (L2-L3 fibers)

Action: adducts thigh; flexes thigh Origin: pubis near pubic symphysis Insertion: linea aspera of femur Innervation: obturator nerve (L2-L4)

Action: adducts thigh; adductor part of muscle flexes thigh; hamstring part of muscle extends and laterally rotates thigh Origin: inferior ramus of pubis and ischial tuberosity Insertion: hamsting part = linea aspera of femur; adductor part = adductor tubercle of femur Innervation: adductor part = obturator nerve (L2-L4); hamstring part = tibial division of sciatic nerve (L2-L4 fibers)

Action: adducts thigh; flexes thigh Origin: inferior ramus and body of pubis Insertion: upper third of linea apsera of femur Innervation: obturator nerve (L2-L3 fibers)

Action: adducts and flexes thigh; flexes leg Origin: inferior ramus and body of pubis Insertion: upper medial surface of tibia Innervation: obturator nerve (L2-L4)