The vagus nerve is a massive innervation of pharyngeal, thoracic, and abdominal contents. The vagus nerve also synapses with the enteric fibers in the gall bladder and bile duct and stimulates liver function. For example, if you get a foreign object in your eye and the lacrimal gland begins to produce tears to wash it out, you do not undertake other parasympathetic functions at the same time - such as emptying the bowl. Further, many of these sensory functions result in reflexes including autonomic responses. Ordinarily there is no permanent sequelae - except for maybe a split scalp.
Result is inadequate motility of the colon, chronic constipation, and grossly enlarged colon.
Sympathetic innervation coordinates myocardium, smooth muscle, and glandular organs in a quick response to stress or emergencies. Also known as the 'thoracolumbar' nervous system, it's exit from the CNS is entirely spinal in origin. Sympathetic function is generally global - response throughout the system is total. Not only does the sympathetic division supply the visceral organs within body cavities, but also the visceral structures in the superficial part of the body. The sympathetic division operates in antagonism to the other division of the autonomic nervous system, the parasympathetic system.