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Parasympathetic nervous system: originates in the brain stem and lower part of the spinal cord; opposes physiological effects of the sympathetic nervous system: stimulates digestive secretions; slows the heart; constricts the pupils; dilates blood vessels
Source: WordNet 2.1
Parasympathetic nervous system : craniosacral division of the autonomic nervous system; generally acts to conserve resources and restore homeostasis, often with effects reciprocal to the sympathetic nervous system; cell bodies of the parasympathetic preganglionic fibers are in brain stem nuclei and in the sacral spinal cord; they synapse in cranial autonomic ganglia or in terminal ganglia near target organs.
Parasympathetic nervous system: Part of autonomic nervous system dealing with basic involuntary processes.
Condition count: 0
Organ types: Autonomic nervous system (6)
Organs: list of all organs
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