Medical Coding

Answer: D - The thoracic plexus is not a nerve plexus found in the human body. Although there are thoracic spinal nerves in the body, there is no intersection of thoracic nerves culminating in a thoracic plexus. The cervical plexus serves the head, neck, and shoulders. The lumbar plexus serves the back, abdomen, groin, thighs, knees and calves. The sacral plexus serves the pelvis, buttocks, genitals, thighs, calves, and feet.