This section is from the book "Anatomy Of The Arteries Of The Human Body", by John Hatch Power. Also available from Amazon: Anatomy of the Arteries of the Human Body, with the Descriptive Anatomy of the Heart.
The Anterior And Larger Branch descends between the adductor brevis and longus muscles, and supplies these, as well as the obturator externus, adductor magnus, and gracilis muscles. It anastomoses with the internal circumflex, and the muscular branches of the femoral artery. Some of its divisions extend into the perineum, and anastomose with the pudic artery.
It also detaches a small vessel, which descends along the internal margin of the obturator foramen, to communicate with the posterior branch: in this manner a kind of arterial circle is formed around the obturator foramen.