The parasympathetic division of the ANS includes
A)preganglionic neurons in the lumbar segments of the spinal cord.
B)ganglionic neurons in the parasympathetic chain.
C)preganglionic neurons in the brain stem.
D)neurons with a greater range of effects upon the target organs than have the neurons of the sympathetic division.
E)None of the answers are correct.

Question

Quizplus · Accepted Answer

The parasympathetic division of the ANS includes preganglionic neurons in the brain stem, which then synapse with ganglionic neurons located close to or within the target organs. This division is often responsible for resting and digesting activities in the body, such as slowing the heart rate and increasing intestinal activity. Preganglionic neurons in the lumbar segments of the spinal cord are part of the sympathetic division, not the parasympathetic. Option D is incorrect, as both the parasympathetic and sympathetic divisions have specific effects on target organs. Option B is incorrect because ganglionic neurons in the parasympathetic chain are not unique to the parasympathetic division - both divisions have ganglionic neurons. Option E is incorrect.

The Parasympathetic Division of the ANS Includes