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Why are the effects of parasympathetic stimulation more specific and localized than those of the sympathetic division?

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Final answer:

The effects of parasympathetic stimulation are more specific and localized due to the organization and pathways of the parasympathetic nervous system.

Step-by-step explanation:

The effects of parasympathetic stimulation are more specific and localized than those of the sympathetic division because of the organization and pathways of the parasympathetic nervous system.

In the parasympathetic division, preganglionic neurons have long axons that extend from the brain stem and sacral spinal cord to terminal ganglia located close to or within the target effectors. The short postganglionic fibers then contact the target tissues within the organ to release acetylcholine (ACh), which binds to muscarinic receptors and induces rest-and-digest responses.

This localized and specific control allows for precise regulation of organ function, promoting energy conservation and digestion in a restful state.

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