Gluteal Muscles Flashcards
Tensor Fascia Latae
O: Ilium, iliac crest, anterior lateral lip
I: Femur: IT band to Gerdy’s tubercle and lateral extensor retinaculum to patellar tendon
N: Superior gluteal nerve L45S1
Action: Hip abduction, flexion, IR
Gluteus minimus
O: Ilium: external surfaces between anterior and inferior gluteal lines
I: Femur: Greater trochanter anterior surface
N: Superior gluteal nerve L45S1
Action: Hip abduction, IR
Gluteus medius
O: Ilium; external surfaces between anterior and posterior gluteal lines
I: Femur greater trochanter lateral surface
N: Superior gluteal nerve L45S1
A: Hip abduction, IR
Gluteus maximus
O: Ilium posterior gluteal lines, sacrum and coccyx dorsal surface, sacrotuberous ligament
I: Femur - gluteal tuberosity (1/4), IT band, posterior border (3/4)
N: Inferior gluteal nerve L5S12
Action: Hip extension
Piriformis
O: Sacrum- anterior surface
I: Femur - greater trochanter superior aspect
N: Nerve to piriformis (VPR S12)
A: Hip ER, horizontal abduction
Obturator Internus
O: Pubis/ischium - medial margin of obturator foramen and membrane
I: Femur- greater trochanter medial aspect
N: Nerve to obt. internus/gemellus superior L5S12
A: Hip ER, horizontal abduction
Gemellus superior
O: Ischium- ischial spine
I: Obturator internus - superior border
N: nerve to gemellus superior/ obt. internus L5S12
A: Hip ER, horizontal abduction
Gemellus inferior
O: Ischium- ishial tuberosity
I: Obturator internus - inferior border
N: nerve to gemellus inferior/ quadratus femoris L45S1
A: Hip ER, horizontal abduction
Quadratis femoris
O: Ischium- ischial tuberosity lateral aspect
I: Femur - quadrate tubercle
N: Nerve to quadratis femoris/gemellus inferior L45S1
A: Hip ER
Obturator Externus
O: Pubis/ischium - lateral margin of obturator foramen and membrane
I: Femur - trochanteric fossa
N: Posterior obturator nerve L34
A: Hip ER
Sartorius
O: Ilium - ASIS and the 1/2 iliac notch below
I: Femur - pes anserinus (cane)
N: Femoral nerve L23
A: Hip flexion, abduction, ER; knee flexion, IR
Rectus Femoris
O: Straight head: Ilium- AIIS Reflected head: groove above acetablum I: Patella - base Tibia- tibial tuberosity via patellar tendon N: Femoral nerve L234 A: Knee extension
Vastus Lateralis
O: Femur - Lateral lip of linea aspera I: Patella - lateral border Tibia - tibial tuberosity via patellar tendon N: Femoral nerve L234 A: Knee extension
Vastus Medialis
O: Femur - medial lip of linea aspera I: Patella - medial border Tibia - tibial tuberosity via patellar tendon N: Femoral nerve L234 A: Knee extension
Vastus intermedius
O: Femur - anterior and lateral surface to lateral lip of linea aspera
I: Patella - base
Tibia - tibial tuberosity via patellar tendon
N: Femoral nerve L234
A: Knee extension