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Hip and Pelvis

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Question
Origin
Insertion
Action
Nerve
Artery
Adductor Magnus   ischial tuberosity, pubic rami, ischium   from greater trochanter to linea aspera to medial supracodylar line, adductor tubercle   adducts thigh, upper portion flexes thigh, lower portion extends the thigh   sciatic and posterior branch of obturator   medial femoral circumflex and obturator and popliteal as muscle goes distally  
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Pectineus   iliopectineal line on superior pubic rami   lesser trochanter to linea aspera   adduction, flexion, and internal rotation of hip/thigh   femoral   medial femoral circumflex and obturator  
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Gluteus Maximus   posterior crest of ilium, posterior sacrum and coccyx, sacrotuberous ligament   gluteal tuberosity and tensor fascae latae   strong extensor, upper fibers assist in abduction, lower fibers assist in adduction   inferior gluteal   superior and inferior gluteal, 1st branch of profunda femoris  
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Gluteus Medius   outer surface of iliac crest   lateral surface of greater trochanter   abduction of thigh   superior gluteal   deep branch of superior gluteal  
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Gluteus minimus   outer surface of iliac crest below origin of gluteus medius   anterior border of greater trochanter   abduction and internal rotation of thigh, may assist in hip flexion   superior gluteal   deep branch of superior gluteal  
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Piriformis   anterior pelvic surface of sacrum and sacrotuberous ligament   upper border of greater trochanter   external rotation of hip/thigh, will abduct when hip is flexed   1st and 2nd sacral   superior and inferior gluteal, internal pudendal  
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Gemellus Superior   outer surface of ischial spine   blends with tendon of obturator internus into medial surface of greater trochanter   external rotation of hip/thigh   sacral plexus   inferior gluteal  
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Obturator Internus   inner aspect of pelvis, margins of obturator foramen, obturator fascia   medial surface of greater trochanter   external rotation of hip/thigh   sacral plexus   internal pudendal and superior gluteal  
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Gemellus Inferior   proximal region of ischial tuberosity   blends with tendon of obturator internus into medial surface of greater trochanter   external rotation of hip/thigh   sacral plexus   inferior gluteal  
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Obturator Externus   outer margin of obturator foramen and rami of pubis   trochantic fossa   external rotation of hip/thigh   obturator   obturator and medial femoral circumflex  
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Quadratus Femoris   lateral border of ischial tuberosity   anterior portion of greater trochanter and intertrochantic line   external rotation of hip/thigh and adduction   sacral plexus   medial femoral circumflex  
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Iliacus   upper 2/3 of iliac fossa, iliac crest, base of sacrum   tendon of psoas major, joint capsule, lesser trochanter   flexion of hip/thigh   femoral   iliac branch of iliolumbar and gluteal  
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Psoas Major   transverse process intervertebral discs and bodies of all lumbar vertebrae   lesser trochanter of femur   flexion of hip/thigh and when thogh is flexed, it flexes vertebral column on pelvis   2nd and 3rd lumbar plexus   iliolumbar  
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Adductor Longus   Anterior portion of pubic bone and pubic symphysis   middle portion of medial lip of linea aspera   adducts hip/thigh, assists in hip flexion   anterior branch of obturator   medial femoral circumflex and obturator  
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Adductor Brevis   inferior pubic rami   line from lesser trochanter to linea aspera   adducts hip/thigh, assists in hip flexion   anterior branch of obturator   medial femoral circumflex and obturator  
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