Acupuncture points of the lumbar plexus.

This communication is the fifth in a series of six publications describing acupuncture points by anatomic nomenclature. This article describes acupuncture points in the lumbar region of the posterior body wall, the inguinal and pelvic regions of the lower abdomen, and the medial surface of the thigh and leg. Acupuncture points in these regions are generally established by anatomic features of the lumbar spinal nerves. Nerve branches of the posterior primary rami of the lumbar spinal nerves and the lumbar plexus provide the anatomic basis for acupuncture points in these regions and are used to name the points accordingly.