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44 Cards in this Set
- Front
- Back
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Action of the Gulteal Region? 4
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extend, abducts, medial and lateral rotation
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Actions of Posterior Thigh? 2
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extend the thigh
flex the leg |
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What are the 3 gluteal muscles?
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Gluteus maximus
Gluteus Medius Gluteus Minimus |
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What are the Lateral Rotators of the Thigh? 4
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Piriformis
Obturator Internus Superior and Inferior Gemelli Obturator Externus |
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Origin (4) & insertion(2): Gluteus Maximus?
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O- dorsal aspect of Ilium, sacrum, coccyx, sacrotuberous ligament
I- iliotibial band, gluteal tuberosity |
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Action: Gluteus Maximus? 2
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major extensor of thigh
lateral rotator |
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Innervation: Gluteus Maximus?
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Inferior Gluteal Nerve
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Origin & Insertion: Gluteus Medius?
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O- between anterior and posterior gluteal lines
I- greater trochanter of femur |
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Origin & Insertion: Gluteal Minimus?
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O- between anterior and inferior gluteal lines
I- greater trochanter of femur |
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Action: Gluteus Medius? 2
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abduct the thigh
medially rotate the thigh |
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Action: Gluteus minimus? 2
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abduct the thigh
medially rotate the thigh |
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Innervation: Gluteus Medius?
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Superior Gluteal Nerve
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Innervation: Gluteus Minimus:
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Superior Gluteal nerve
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What are the Gluteus medius and minimus essential role in locomotion?
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prevents the unsupported limb from dragging on the ground by keeping the pelvis level
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Trendelenberg?
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when the gluteus medius and minimus are inactive owing to injury of the superior gluteal nerve
-the supporting and steadying action of these muscles is lost and the pelvis falls to the side of the raised or unsupported limb |
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Where do all lateral rotators of the thigh insert?
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greater trochanter
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Origin & insertion: Piriformis?
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O- anterior portion of sacrum
I- greater trochanter |
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Action: Piriformis?
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laterally rotate the thigh
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Origin & Insertion: Obturator Internus?
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O- sacrum
I- greater trochanter |
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Action: Obturator Internus?
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laterally rotate thigh
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Innervation: Obturator internus? 2
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plexus branches L5 and S1
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Innervation: Piriformis? 3
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plexus branches S1 S2 L5
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Origin & Insertion: Gamellus Superior & Inferior?
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O-ischial spine & tuberosity
I- obturator internus tendon, greater trochanter |
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Action: Quadratus Femoris?
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strong lateral rotator of thigh
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Origin & Insertion: Quadratus femoris?
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O-ischial tuberosity
I- intertrochanteric crest of femur |
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Innervation: Quadratus femoris? 2
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plexus branches L5 S1
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Innervation: Obturator externus?
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Obturator nerve
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Origin & insertion: Obturator externus?
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O- obturator foramen
I-trochanteric fossa of femur |
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Action: Obturator externus?
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lateral rotator of thigh
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Why are intragluteal injections safe in the upper lateral quadrant of glutes?
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sciatic nerve located in the lower half of gluteal region
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What 3 muscles make up the hamstrings?
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Biceps femoris
semitendinosus semimembranosus |
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Role of hamstring muscles? 2
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extensors of thigh
flexors of leg |
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Innervation of long head of biceps femoris?
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tibial nerve
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Innervation: short head of bicep femoris?
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common fibular nerve
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What joints does long of biceps femoris cross? 2
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hip
knee |
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What joints does short head of biceps femoris cross?
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knee
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Origin & insertion: biceps femoris?
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O- ischial tuberosity (long head), linea aspera (short head)
I- head of fibula |
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Action: Biceps femoris?
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extends thigh and flexes leg
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Origin & Insertion: Semitendinosus?
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O- ischial tuberosity
I- medial side of knee |
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Action: Semitendinosus?
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extends thigh
flexes leg |
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Innervation: Semitendinosus?
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Sciatic nerve
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Origin & insertion: Semimembranosus?
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O-- ischial tubersoity
I- medial condyle of tibia |
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Action: Semimembranosus?
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extends thigh
flexes leg |
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Innervation: Semimembranosus?
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sciatic nerve
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