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11 Cards in this Set
- Front
- Back
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Gluteus Maximus
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O: Illium posterior to posterior gluteal line; dorsal surface of sacrum and coccyx; sacrotuberous ligament
I: Iliotibial tract, inserts into lateral condyle of tibia; gluteal tuberosity N: Inferior gluteal nerve A: Extends thigh (especially from flexed position) and assists in its lateral rotation; steadies thigh and assists in rising from sitting position |
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Gluteus medius
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O: External surface of ilium between anterior and posterior gluteal lines
I: Lateral surface of greater trochanter of femur N: Superior gluteal nerve A: Abduct and medially rotate thigh; keep pelvis level when ipsilateral limb is weight-bearing and advance opposite (unsupported) side during its swing phase |
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Gluteus minimus
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O: External surface of ilium between anterior and inferior gluteal lines
I: Anterior surface of greater trochanter of femur N: Superior gluteal nerve A: Abduct and medially rotate thigh; keep pelvis level when ipsilateral limb is weight-bearing and advance opposite (unsupported) side during its swing phase |
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Tensor fasciae latae (TFL)
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O: Anterior superior iliac spine; anterior part of iliac crest
I: Iliotibial tract, which attaches to lateral condyle of tibia N: Superior gluteal nerve A: Abduct and medially rotate thigh; keep pelvis level when ipsilateral limb is weight-bearing and advance opposite (unsupported) side during its swing phase |
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Piriformis
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O: Anterior surface of sacrum; sacortuberous ligament
I: Superior border of greater trochanter of femur N: Branches of anterior rami A: Laterally rotate extended thigh and abduct flexed thigh; steady femoral head in acetabulum |
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Obturator internus
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O: Pelvic surface of obturator membrane and surrounding bones
I: Medial surface of greater trochanter (trochanteric fossa of femur) N: Nerve to obturator internus A: Laterally rotate extended thigh and abduct flexed thigh; steady femoral head in acetabulum |
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Superior and inferior gemelli
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O: Superior: ischial spine
Inferior: ischial tuberosity I: Medial surface of greater trochanter (trochanteric fossa) N: Superior gamellus: nerve to obturator internus Inferior gamellus: nerve to quadratus femoris A: Laterally rotate extended thigh and abduct flexed thigh; steady femoral head in acetabulum |
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Quadratus femoris
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O: Lateral border of ischial tuberosity
I: Quadrate tubercle on intertrochanteric crest of femur and area inferior to it N: Nerve to quadratus femoris A: Laterally rotates thigh; steadies femoral head in acetabulum |
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Semitendinosus
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O: Ischial tuberosity
I: Medial surface of superior part of tibia N: tibial division of sciatic nerve part of tibia A: Extend thigh; flex leg and rotate it medially when knee is flexed; when thigh and leg are flexed, these muscles can extend trunk |
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Semimembranosus
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O: Ischial tuberosity
I: Posterior part of medial condyle of tibia; oblique popliteal ligament N: Tibial division of sciatic nerve part of tibia A: Extend thigh; flex leg and rotate it medially when knee is flexed; when thigh and leg are flexed, these muscles can extend trunk |
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Biceps femoris
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O: Long head: ischial tuberosity
Short head: linea aspera and lateral supracondylar of femur I: Lateral side of head and fibula; tendon is split at this site by fibular collateral ligament of knee N: Long head: tibial division of sciatic nerve Short head: common fibular division of sciatic nerve A: Flexes leg and rotates it laterally when knee is flexed; extends thigh |
