Thigh Anterior/Medial Compartment OINAs
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| Tensor fascia latae Origin | outer area of iliac crest between ASIS & tubercle of iliac crest.
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| Tensor fascia latae Insertion | Iliotibial tract
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| Tensor fascia latae Action | assists with flexion, abduction, medial rotation of thigh at hip. Stabilizes trunk on the thigh; stabilizes femur on the tibia.
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| Tensor fascia latae Nerve | superior gluteal.
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| Tensor fascia latae Blood | Superior gluteal & lateral circumflex femoral.
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| Sartorius / Tailor’s Muscle Origin | ASIS.
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| Sartorius / Tailor’s Muscle Insertion | Superior part of medial side of tibia.
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| Sartorius / Tailor’s Muscle Action | Ability to sit cross-legged involves flextion and lateral rotation of thigh at hip. Flextion and medial rotation of leg at knee.
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| Sartorius / Tailor’s Muscle Nerve | Femoral.
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| Sartorius / Tailor’s Muscle Blood | Deep femoral / profunda femoris artery.
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| Rectus femoris Origin | AIIS & posterior superior rim of the acetabulum.
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| Vastus lateralis Origin | Anteroinferior area under the greater trochanter, lateral part of gluteal tuberosity of femur, lateral tip of linea aspera of femur, lateral intermuscular septum.
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| Vastus medialis Origin | Inferior part of intertrochanteric line, pectineal line of femur, medial lip of linea aspera of femur, medial intermuscular septum.
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| Vastus Intermedius Origin | Anterior and lateral surfaces of shaft of femur.
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| Quadriceps femoris Insertion | All 4 heads into patella tendon and tibial tuberosity via patellar ligament.
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| Quadriceps femoris Action | Extension of leg at knee. (Rectus Femoris): flexion of thigh at hip.
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| Quadriceps femoris Nerve | Femoral.
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| Quadriceps femoris Blood | Deep femoral/profunda femoris
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| Pectineus Origin | Pectineal line of superior ramus of pubis.
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| Pectineus Insertion | Pectineal line of femur.
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| Pectineus Action | Flexion & adduction of thigh at hip.
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| Pectineus Nerve | Femoral (May receive some innervations from the anterior branch of obturator)
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| Pectineus Blood | Medial circumflex femoral.
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| Iliacus Origin | Iliac Fossa.
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| Iliacus Insertion | Lesser trochanter of femur (along with tendon of psoas major).
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| Iliacus Action | (as iliopsoas) flexion of thigh at hip.
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| Iliacus Nerve | Femoral
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| Iliacus Blood | Iliolumbar.
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| Psoas major Origin | Transverse processes, sides of vertebral bodies, & T12-L5.
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| Psoas major Insertion | lesser trochanter of femur (along with tendon of iliacus)
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| Psoas major Action | (as iliopsoas) flexion of thigh at hip.
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| Psoas major Nerve | Ventral rami of L1-L3.
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| Psoas major Blood | iliolumbar.
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| Gracilis Origin | Body of pubis & inferior ramus of pubis.
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| Gracilis Insertion | Medial surface of proximal part of shaft of tibia, inferior to the tibial condyle.
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| Gracilis Action | Adduction of thigh at hip, flexes & medially rotates leg at the knee.
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| Gracilis Nerve | Anterior branch of obturator.
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| Gracilis Blood | Obturator artery. (This muscle is relatively weak in its actions, therefore it is sometimes used to replace a damaged hand muscle.)
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| Adductor Longus Origin | Anterior surface of body of pubis.
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| Adductor Longus Insertion | Linea aspera of femur.
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| Adductor Longus Action | Adducts & flexes thigh at hip.
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| Adductor Longus Nerve | Anterior branch of obturator.
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| Adductor Longus Blood | Femoral artery.
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| Adductor brevis Origin | Body of pubis and inferior ramus of pubis.
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| Adductor brevis Insertion | Linea aspera of femur.
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| Adductor brevis Action | Adducts & flexes thigh at hip.
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| Adductor brevis Nerve | (Either or Both) Anterior & posterior branches of the obturator nerve.
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| Adductor brevis Blood | Femoral Artery. (This muscle lies between anterior division of the obturator nerve and the posterior division of the obturator nerve).
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| Adductor Magnus (Adductor Part) Origin | Inferior ramus of pubis & ramus of ischium.
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| Adductor Magnus (Adductor Part) Insertion | Linea aspera of femur.
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| Adductor Magnus (Adductor Part) Action | Adduction of thigh at hip.
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| Adductor Magnus (Adductor Part) Nerve | Posterior branch of obturator nerve.
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| Adductor Magnus (Adductor Part) Blood | Deep femoral artery.
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| Adductor Magnus (Hamstring Part) Origin | Ischial Tuberosity.
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| Adductor Magnus (Hamstring Part) Insertion | Adductor tubercle of femur.
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| Adductor Magnus (Hamstring Part) Action | Extension of thigh at hip.
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| Adductor Magnus (Hamstring Part) Nerve | Tibial division of sciatic.
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| Adductor Magnus (Hamstring Part) Blood | Deep femoral artery (may also be supplied by obturator artery.)
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| Obturator externus Origin | Bony margins of obturator foramen & external surface of obturator membrane.
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| Obturator externus Insertion | Trochanteric fossa of femur.
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| Obturator externus Action | Lateral rotation of thigh at hip & steadies head of femur in acetabulum.
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| Obturator externus Nerve | Posterior branch of obturator.
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| Obturator externus Blood | Obturator artery.
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Created by:
MichaelR
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