Which one of the following statements concerning the parasympathetic nervous system is correct? A. The parasympathetic system us
es norepinephrine as a neurotransmitter. B. The parasympathetic system often discharges as a single, functional system. C. The parasympathetic division is involved in accommodation of near vision, movement of food, and urination. D. The postganglionic fibers of the parasympathetic division are long compared to those of the sympathetic nervous system. E. The parasympathetic system controls the secretion of the adrenal medulla.
(C). The parasympathetic division is involved in accommodation of near vision, movement of food, and urination.
Explanation:
The parasympathetic system maintains essential bodily functions, such as vision, movement of food, and urination. It uses acetylcholine, not norepinephrine, as a neurotransmitter, and it discharges as discrete fibers that are activated separately. The postganglionic fibers of the parasympathetic system are short compared to those of the sympathetic division. The adrenal medulla is under control of the sympathetic system.
The parasympathetic division is involved in accommodation of near vision, movement of food and urination
Explanation:
Parasympathetic nervous system is a division of autonomic system and it is located in the spinal cord and medula. It regulate mundane processes that are essential to maintain normal life or homeostasis.
They regulate digestion including urination and defecation.
They regulate sexual arousal.
They slow the heart rate, blood pressure and increase intestinal and gland activity.
The most basic reason that cells are stained is to enhance visualization of the cell or certain cellular components under a microscope. Cells may also be stained to highlight metabolic processes or to differentiate between live and dead cells in a sample.
