[1] It descends through the fibers of the psoas major, and emerges from its medial border near the brim of the pelvis.

It then passes behind the common iliac arteries, and on the lateral side of the internal iliac artery and vein, and runs along the lateral wall of the lesser pelvis, above and in front of the obturator vessels, to the upper part of the obturator foramen.

[2] An accessory obturator nerve may be present in approximately 8% to 29% of the general population.

[3] The obturator nerve is responsible for the sensory innervation of the skin of the medial aspect of the thigh.

[6] This article incorporates text in the public domain from page 953 of the 20th edition of Gray's Anatomy (1918)