. Cunningham's Text-book of anatomy. Anatomy. OBTUBATOR XEEVE. 12- 1. An articular branch to the hip-joint -which arises from the nerve as soon as it enters the thigh, and supplies the joint through the acetabular notch. 2. Muscular branches to the adductor longus, gracilis, adductor brevis (usually), pectineus (occasionally). The last-named muscle is not usually supplied from the obturator nerve. 3. A cutaneous branch of very variable size forms one of the terminal branches (Fig. 626). It becomes superficial between the gracilis and adductor longus, in the middle third of the thigh, and may s
. Cunningham's Text-book of anatomy. Anatomy. OBTUBATOR XEEVE. 12- 1. An articular branch to the hip-joint -which arises from the nerve as soon as it enters the thigh, and supplies the joint through the acetabular notch. 2. Muscular branches to the adductor longus, gracilis, adductor brevis (usually), pectineus (occasionally). The last-named muscle is not usually supplied from the obturator nerve. 3. A cutaneous branch of very variable size forms one of the terminal branches (Fig. 626). It becomes superficial between the gracilis and adductor longus, in the middle third of the thigh, and may supply the skin of the distal two-thirds of the thigh in its medial side. It is generally of small size, and is connected with branches of the medial cutaneous and saphenous nerves behind the sartorius muscle to form the obturator ( sub-sartorial) plexus. The branch from the saphenous nerve to the plexus passes medially behind the sartorius after piercing the Obturator nerve Os pubisN^j Cut edge of psoas major Nerve to pectineus Posterior ramus of obturator nerve Anterior ramus of obturator nerve Descending muscular branches Pectineus Ascending branch to obturator externus Medial circumflex artery Adductor longus Adductor brevis Cutaneous branch. Second sacral vertebra fivVV/ Piriformis Glutseus maximus Peritoneum Obturator internus Obturator externus Ramus of ischium Ascending branch of medial circumflex artery Quadratus femoris Medial circumflex artery Descending muscular branch Adductor magnus Branch to knee-joint Branch to femoral artery Gracilis Fig. 626.—Scheme of the Course and Distribution of the Obturator Xerye. aponeurotic covering of the adductor canal. The branch from the medial cutaneous nerve is generally superficial at the point of formation of the plexus. 4. The branch to the femoral artery is the other terminal branch of the nerve. It enters the adductor canal along the medial border of the adductor longus, and ramifies over the distal part of the artery.
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