muscles Of gluteal Region Flashcards
Gluteus Maximus insertion
Fibers end in iliotibial tract, inserts into lateral. Condyle of tibia
Some fibers gluteal tuberosity of femur
Gluteus Maximus orgin
Ilium posterior to gluteal line, dorsal surface of sacrum and coccyx
Gluteus Maximus innervation
Inferior gluteal nerve (S1, S2)
Gluteus Maximus action
Extends hip joint between flexed and standing position and assists in its lateral rotation
Gluteus Medius orgin
External surface of ilium between anterior and posterior gluteal lines
Gluteus Medius insertion
Lateral surface of greater trochantor of femur
Gluteus Medius innervation
Superior gluteal nerve L4 L5 S1
Gluteus Medius action
Abduct and anterior portions. Medially rotate hip
Gluteus Minimus orgin
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 anterior portions. Medially rotate hip
Tensor fasciae latae Orgin
Anterior superior iliac spine, anterior part of iliac crest
Tensor fasciae latae insertion
Iliotibial tract which attaches to lateral Condyle of tibia
Gerdy Tubercle
Tensor fasciae latae innervation
Superior gluteal nerve L4 L5 S1
Tensor fasciae latae action
Flexes hip joint, acts with gluteus Maximus to stabilize the extended knee joint
Piriformis orgin
Anterior portion of 2nd - 4th sacral segments, superior margin of greater sciatic notch
Piriformis insertion
Superior border of greater trochanter of femur
Piriformis innervation
Branches of anterior rami S1 and S2
Piriformis action
Laterally rotate extended hip joint , abducts flexed hip joint stabilizes hip joint
Obturator internus orgin
Pelvic surface of ilium and ischium obturator
Obturator internus insertion
Medial surface of greater trochanter of femur (trochantric fossa of femur)
Obturator internus innervation
Nerve to obturator internus L5 S1
Obturator internus action
Laterally rotate extended hip joint , abducts flexed hip joint stabilizes hip joint