test 4 gluteal Flashcards
gluteus maximus origin
Ilium posterior to posterior gluteal line; dorsal surface of sacrum and coccyx; and sacrotuberous ligament
gluteus maximus insertion
Most fibers end in iliotibial tract, which inserts into lateral condyle of tibia; some fibers insert on gluteal tuberosity of femur
gluteus maximus inervation
Inferior gluteal nerve (L5, S1, S2)
gluteus maximus action
Extends thigh and assists in its lateral rotation; steadies thigh and assists in rising from sitting position
gluteus medius origin
External surface of ilium between anterior and posterior gluteal lines
gluteus medius insertion
Lateral surface of greater trochanter of femur
glteus medius innervation
Superior gluteal nerve (L4, L5, S1)
gluteus medius action
Abduct and medially rotate thigh; keep pelvis level when opposite leg is raised
gluteus minimus origin
External surface of ilium between anterior and inferior gluteal lines
gluteus minimus insertion
Anterior surface of greater trochanter of femur
gluteus minimus innervation
Superior gluteal nerve (L4, L5, S1)
gluteus minimus action
Abduct and medially rotate thigh; keep pelvis level when opposite leg is raised
Tensor fasciae latae (tensor of fascia lata origin
Anterior superior iliac spine; anterior part of iliac crest
Tensor fasciae latae (tensor of fascia lata) insertion
Iliotibial tract, which attaches to lateral condyle of tibia (Gerdy tubercle
Tensor fasciae latae (tensor of fascia lata) innervatin
Superior gluteal nerve (L4, L5, S1)
Tensor fasciae latae (tensor of fascia lata) action
Flexes thigh
Piriformis (passes through greater sciatic foramen) origin
Anterior surface of 2nd–4th sacral segments; superior margin of greater sciatic notch and sacrotuberous ligament
Piriformis (passes through greater sciatic foramen)insertion
Superior border of greater trochanter of femur
Piriformis (passes through greater sciatic foramen)innervation
Branches of anterior rami of S1, S2
Piriformis (passes through greater sciatic foramen) action
Laterally rotate extended thigh; abduct flexed thigh; steady femoral head in acetabulum (stabilizes hip joint
Obturator internus (passes through lesser sciatic foramen) origin
Pelvic surface of ilium and ischium; and obturator membrane
Obturator internus (passes through lesser sciatic foramen)insertion
Medial surface of greater trochanter (trochanteric fossa) of femur
Obturator internus (passes through lesser sciatic foramen innervation
Nerve to obturator internus (L5, S1
Obturator internus (passes through lesser sciatic foramen)action
Laterally rotate extended thigh; abduct flexed thigh; steady femoral head in acetabulum (stabilizes hip joint)
