Anatomy muscles of gluteal region
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36 terms
Terms | Definitions |
|---|---|
 gluteus maximus origin | ilium posterior to posterior gluteal line; dorsal surface of sacrum and coccyx; sacrotuberous ligament |
| gluteus maximus insertion | gluteal tuberosity and lateral condyle of tibia |
| gluteus maximus innervation | inferior gluteal nerve (S1,2) |
| gluteus maximus action | extends and laterally rotates thigh; assists in rising from a sitting position |
| gluteus medius origin | external surface of ilium between the anterior and posterior gluteal lines |
| gluteus medius insertion | lateral surface of the greater trochanter of femur |
| gluteus medius innervation | superior gluteal nerve (L5) |
| gluteus medius action | abduct and medially rotates the thigh |
| gluteus minimus origin | external surface of the ilium between the anterior and inferior gluteal lines |
| gluteus minimus insertion | anterior surface of the greater trochanter of the femur |
| gluteus minimus innervation | superior gluteal nerve (L5) |
| gluteus minimus action | abducts and medially rotates thigh |
| tensor fasia lata origin | ASIS and anterior part of iliac spine |
| tensor fasia lata insertion | IT tract which attaches to the lateral condyle of the tibia |
| tensor fasia lata innervation | superior gluteal nerve (L5) |
| tensor fasia lata action | abduct and medially rotates the thigh |
| piriformis origin | anterior surface of the sacrum and the sacrotuberous ligament |
| piriformis insertion | superior border of the greater trochanter of the femur |
| piriformis innervation | braches of ventral rami (S1) |
| piriformis action | laterally rotates an extended thigh and abducts a flexed thigh and is a hip stabilizer |
| obturator internus origin | pelvic surface of obturator membrane and surrounding bones |
| obturator internus insertion | medial surface of greater trochanter (trochanteric fossa) of femur |
| obturator internus innervation | nerve to obturator internus (S1) |
| obturator internus action | laterally rotates an extended thigh and abducts a flexed thigh and is a hip stabilizer |
| superior gamellus origin | ischial spine |
| superior gamellus insertion | medial surface of greater trochanter (trochanteric fossa) of femur |
| superior gamellus innervation | nerve to obturator internus (S1) |
| superior gamellus action | laterally rotates an extended thigh and abducts a flexed thigh and is a hip stabilizer |
| inferior gamellus origin | ischial tuberosity |
| inferior gamellus insertion | medial surface of greater trochanter (trochanteric fossa) of femur |
| inferior gamellus innervation | nerve to quadratus femoris |
| inferior gamellus action | laterally rotates an extended thigh and abducts a flexed thigh and is a hip stabilizer |
| quadratus femoris origin | lateral border of ischial tuberosity |
| quadratus femoris insertion | quadrate tubercle on intertrochanteric crest of femur and area inferior to it |
| quadratus femoris innervation | nerve to quadratus femoris |
| quadratus femoris action | laterally rotates the thigh and hip stabilizer |
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