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Hip Muscles
origins, insertions, actions, innervations, segments
Muscle | Orgin | Insertion | Action | Innervation | Segment |
---|---|---|---|---|---|
adductor longus | pubis | middle 1/3 of the linea aspera | hip adduction | obturator nerve | L2, L3, L4 |
adductor brevis | pubis | pectineal line and linea aspera | hip adduction | obturator nerve | L2, L3 |
adductor magnus | ischium and pubis | entire linea aspera and adductor tubercle | hip adduction | obturator and sciatic nerves | L2, L3, L4 |
gracilis | pubis | pes anserinus | hip adduction | obturator nerve | L2, L3 |
gluteus maximus | posterior sacrum and ilium | posterior femur distal to greater trochanter and IT band | hip extension, hyperextension, lateral rotation | inferior gluteal nerve | L5, S1, S2 |
deep rotator muscles | anterior sacrum, ischium, and pubis | greater trochanter area | hip lateral rotation | obturator, S1, S2, and nerves to obturator internis and quadratus femoris | |
semimembranosus | ischial tuberosity | posterior surface of medial condyle of tibia | hip extension, knee flexion | sciatic nerve- tibial division | L5, S1, S2 |
semitendinosus | ischial tuberosity | pes anserinus | hip extension, knee flexion | sciatic nerve- tibial division | L5, S1, S2 |
biceps femoris | long head: ischial tuberosity short head: lateral lip of linea aspera | fibular head | long head: hip extension and knee flexion short head: knee flexion | long head: sciatic nerve- tibial division short head: common fibular nerve | L5, S1, S2 |
gluteus medius | outer surface of ilium | lateral surface of greater trochanter | hip abduction | ||
gluteus minimus | lateral surface of ilium | anterior surface of greater trochanter | hip abduction and medial rotation | superior gluteal nerve | L4, L5, S1 |
tensor fascia lata | ASIS | lateral condyle of tibia | combined hip flexion and abduction | superior gluteal nerve | L4, L5, S1 |
vastus lateralis | linea aspera | tibial tuberosity via patellar tendon | knee extension | femoral nerve | L2, L3, L4 |
vastus medialis | linea aspera | tibial tuberosity via patellar tendon | knee extension | femoral nerve | L2, L3, L4 |
vastus intermedius | anterior femur | tibial tuberosity via patellar tendon | knee extension | femoral nerve | L2, L3, L4 |
popliteus | lateral condyle of femur | posterior surface of medial condyle of tibia | initiates knee flexion | tibial nerve | L4, L5, S1 |
iliopsoas | iliac fossa, and anterior and lateral surfaces of T12-L5 | lesser trochanter | hip flexion | femoral nerve | L2, L3 |
rectus femoris | AIIS | tibial tuberosity via patellar tendon | hip flexion, knee extension | femoral nerve | L2, L3, L4 |
sartorius | ASIS | pes anserinus | combination of hip flexion, abduction, lateral rotation, and knee flexion | femoral nerve | L2, L3 |
pectineus | superior ramus of pubis | pectineal line of femur | hip flexion and adduction | femoral nerve | L2, L3 |