Brain, spinal cord, spinal nerves, sympathetic chain, shown in situ. Skull, spine, pelvic bones, and cerebrum divided in coronal section. Brainstem, spinal cord and spinal nerves shown intact with ribs (cut), intercostal muscles, intercostal nerves, arteries and veins, psoas muscles, neck muscles. Brachial plexus, lumbosacral plexus and sympathetic ganglia shown. Anterior view.