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Muscle | Origin | Insertion | Action | Nerve | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
gracilis | body & inferior ramus of pubis | proximal anteromedial tibia (pes anserine) | adduction & flexion of thigh (at hip joint); flexion & medial rotation of leg (at knee joint) | obturator nerve (L2, L3, L4) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
pectineus | pectineal line of pubis (superior pubic ramus) | pectineal line of femur; (just below lesser trochanter on posterior aspect of femur) | adduction & flexion of thigh (at hip joint) | femoral nerve (L2, L3) or obturator nerve (L2, L3, L4) or both | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
adductor brevis | body & inferior ramus of pubis | medial lip of linea aspera (superior 1/3 of femur) | adduction & flexion of thigh (at hip joint); lateral rotation of thigh | obturator nerve (L2, L3, L4) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
adductor longus | anterior surface of pubis (just inferior to pubic tubercle) | medial lip of linea aspera (middle 1/3 of femur) | adduction & flexion of thigh (at hip joint); lateral rotation thigh | obturator nerve (L2, L3, L4) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
adductor magnus | anterior head (adductor part): inferior pubic ramus & ischial ramus; posterior head (hamstring part): ischial tuberosity | anterior head: linea aspera; posterior head: adductor tubercle of femur (above medial epicondyle) | adduction & extension of thigh (at hip joint); laterally rotation of thigh (anterior head) | anterior head: obturator nerve (L2, L3, L4); posterior head: sciatic nerve, tibial division (L4, L5) |
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