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Thigh Ant/Med OINA
Thigh Anterior/Medial Compartment OINAs
Question | Answer |
---|---|
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. |