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Thigh Ant/Med OINA

Thigh Anterior/Medial Compartment OINAs

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



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