This portion originates from the ischial tuberosity (the "sit bone"). It runs vertically and inserts into the adductor tubercle on the inner side of the knee. Because of its origin and vertical orientation, it behaves much like a hamstring muscle. 2. Primary Functions: More Than Just Adduction
: Attaches to the inferior pubic ramus and the ramus of the ischium. : Attaches along the linea aspera
: This is the larger, more anterior part of the muscle. It originates from the inferior ramus of the pubis and the ramus of the ischium. Hamstring (Ischiocondylar) Portion
Its most famous role is bringing the thigh toward the body's midline. Hip Extension: