The fifth lumbar vertebra (L5) is the bottom-most lumbar of the lower back. The L5 nerve controls hip, knee, foot, and toe movements.
• Connections: rectum, large Intestine, bladder, lower legs, ankles, feet
• Possible problems: circulation problems in the legs and feet, weakness in the legs, ankles, and arches, cold feet, leg cramps, swelling of the legs