Answer
Obturator nerve
Lumbar plexus
Work Step by Step
The obturator nerve consist of the Motor to adductor magnus (part), longus, and brevis muscles, gracilis muscle of medial thigh, obturator externus. It's also a part of the sensory for the skin of the medial thigh.
The lumbar plexus has proximal branches innervate parts of the abdominal wall muscles and the psoas muscle, but its major branches descend to innervate the anterior and medial thigh.