![]() ![]() The upper border of the muscle is horizontal, lying edge to edge with the lower border of quadratus femoris, and the medial circumflex femoral artery passes between the two muscles from front to back to reach the cruciate anastomosis ( Fig. These fibres are inserted progressively higher along the medial supracondylar line, the linea aspera and up to the gluteal tuberosity ( Fig. In continuity with the ischial origin, the adductor part arises from the ischiopubic ramus. 3.48), and the fibres pass vertically downwards to a tendinous attachment to the adductor tubercle of the femur, with an expansion to the medial supracondylar line. The hamstring part arises from the ischial tuberosity ( Fig. This is a composite muscle formed by the fusion of adductor and hamstring muscle masses, each with their own nerve supply. The upper border of adductor brevis thus lies between the two divisions of the obturator nerve in the same way as the upper border of adductor longus lies between the femoral and the profunda femoris vessels. 3.11) the posterior division passes down behind it. The anterior division of the obturator nerve passes vertically downwards on its anterior surface ( Fig. It widens in triangular fashion to be inserted into the upper part of the linea aspera immediately behind the insertion of pectineus and adductor longus. This muscle arises from the body and inferior ramus of the pubic bone, deep to pectineus and adductor longus ( Fig. The muscle rapidly becomes fleshy and flattens out to be inserted by an aponeurotic flat tendon into the middle third of the linea aspera of the femur ( Fig. 3.48), by a strong round tendon, sometimes ossified (‘rider's bone’). This, the most superficial of the three adductors, arises from a circular area on the body of the pubis, in the angle between the pubic crest and symphysis ( Fig. A gracilis muscular flap based on the profunda pedicle is used in perineal reconstructive surgery. The gracilis receives a segmental blood supply from the medial circumflex, profunda and femoral arteries in succession distally. The muscle narrows in triangular fashion and is replaced by a cylindrical tendon which is inserted into the upper part of the medial surface of the shaft of the tibia just behind sartorius. ![]() 3.2), arises as a flat sheet from the edge of the inferior ramus of the pubis and the adjoining ischial ramus ( Fig. This, the most superficial muscle of the medial side of the thigh ( Fig. It is attached to the fascia lata and the linea aspera of the femur, and is continuous above with the fascia on pectineus (see p. The medial intermuscular septum is a thin fascia that lies between vastus medialis and the adductors and pectineus. The nerve of the compartment is the obturator, and the artery is the profunda femoris, assisted proximally by the obturator artery. The muscles consist of gracilis and the three adductors, longus, brevis and magnus, while deeply lies obturator externus. The contents of this (adductor) compartment of the thigh are separated from the anterior (extensor) compartment by the medial intermuscular septum, but there is no septum dividing them from the posterior (flexor or hamstring) compartment. Last's Anatomy: Regional and Applied Part two.
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