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40 Cards in this Set
- Front
- Back
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Superior attachment: gluteus maximus
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1. Fascia covering gluteus medius
2. external surface of ilium behind posterior gluteal line 3. fascia of erector spinae 4. dorsal surface of lower sacrum 5. coccyx 6. external surface of sacrotuberous ligament |
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Inferior attachment: gluteus maximus
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1. posterior aspect of iliotibial tract
2. gluteal tuberosity of proximal femur |
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Innervation: gluteus maximus
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Inferior gluteal nerve (L5-S2)
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Action of gluteus maximus
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hip extension, lateral stabilizer for hip and knee and laterally rotates and abducts thigh
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Superior attachment: gluteus medius
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external surface of ilium between anterior and posterior gluteal lines
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Inferior attachment: gluteus medius
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Elongate facet on the later surface of the greater trochanter
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Innervation: gluteus medius
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Superior gluteal nerve (L4-S1)
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Action of gluteus medius
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Abducts hip, holds pelvis secure over stance leg and prevents pelvic drop on opposite swing side during walking, medially rotates thigh
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Superior attachment: gluteus minimus
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External surface of illium between inferior and anterior gluteal lines
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Inferior attachment: gluteus minimus
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Linear facet on the anterolateral aspect of the greater trochanter
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Innervation: gluteus minimus
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Superior gluteal nerve (L4-S1)
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Action of gluteus minimus
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Abducts femur, holds pelvis up during walking, medially rotates thigh
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Superior attachment: Piriformis
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Anterior surface of sacrum between anterior sacral foramina
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Inferior attachment: Piriformis
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Medial side of superior border of greater trochanter
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Innervation: Piriformis
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Nerve to the piriformis (S1-2)
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Action of Piriformis
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Lateral rotation of hip, abduction of fixed femur
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Proximal attachment: Obturator internus
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1. Anterolateral wall of true pelvis
2. deep surface of obturator membrane and surrounding bone |
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Distal attachment: Obturator internus
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Medial side of greater trochanter
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Innervation: Obturator internus
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Nerve to O.I (L5-S1)
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Action of Obturator Internus
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Laterally rotates extended femur, abducts flexed femur
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Proximal attachment: Superior Gemellus
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External surface of ishial spine
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Distal attachment: Superior Gemellus
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1. Along length of superior surface of O.I. tendon
2. medial side of greater trochanter |
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Innervation: Superior Gemellus
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Nerve to S.G. (L5-S2)
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Action of Superior Gemellus
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Lateral rotation
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Proximal attachment: Inferior Gemellus
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Upper aspect of ishial tuberosity
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Distal attachment: Inferior Gemellus
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1. Along length of inferior surface of O.I. tendon
2. medial side of greater trochanter |
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Innervation: Inferior Gemellus
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Nerve to I.G. (L4-S1)
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Action of Inferior Gemellus
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Lateral rotation, abduction of flexed femur
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Proximan attachment: Quadratus Femoris
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Lateral aspect of ishium, just anterior to ischial tuberosity
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Distal attachment: Quadratus Femoris
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Quadrate tubercle on the intertrochanteric crest of proximal femur
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Innervation: Quadratus Femoris
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Nerve to Q.F. (L4-S1)
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Action of Quadratus Femoris
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Lateral rotation
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Superior attachment: TFL
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later aspect of iliac crest between ASIS and tubercle of the crest
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Inferior attachment: TFL
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Iliotibial tract of fascia lata
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Innervation: TFL
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Superior gluteal nerve (L4-S1)
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Action of TFL
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Primary action: stabilizes knee in extension
Secondary action: 1. internal rotation of thigh 2. Abduction 3. knee extension 4. Hip flexion |
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Proximal attachment: Obturator externus
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External surface of obturator membrane and adjacent bone
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Distal attachment: Obturator externus
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Trochanteric fossa
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Innervation: Obturator externus
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Obturator nerve (L2-L4)
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Action of Obturator externus
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external rotation at hip
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