anatomical differences between sympathetic and parasympathetic divisions

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5 Terms

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sites or origins

parasympathetic originate in the brain and sacral spinal cord

sympathetic originates in thoracic and lumbar regions of spinal cord

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relative lengths of fibers

parasympathetic has long preganglionic and short postganglionic fibers

sympathetic has short preganglionic and long postganglionic fibers

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location of ganglia

parasympathetic ganglia are located in or near the visceral effector organ

sympathetic ganglia lie close to spinal cord

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parasympathetic

cell bodies are located in the brain stem

preganglionic fibers run in Oculomotor nerve, facial nerves, glossopharyngeal, and vagus nerve

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sympathetic

is more complex and innervates more organs than parasympathetic

also called the thoracolumbar division