Which statements are correct concerning the parasympathetic division of the ANS? a: Preganglionic neuron cell bodies are located
in brainstem nuclei b: Preganglionic neuron cell bodies are located in the lateral horns of the T1-L2 regions c: It participates in the "fight-or-flight" response d: It maintains homeostasis e: Preganglionic neuron cell bodies are located in the sacral region of the spinal cord
The parasympathetic nervous system is a division of the autonomic nervous system that controls the internal body organs in resting state
It is active all the time and promotes life by regulating the vital body functions, although the person is unconscious about all these processes
The parasympathetic system also has two types of nerve fibers:
Pre-ganglionic nerve fibers: These nerve fibers originate from the central nervous system and terminate at the ganglia of the parasympathetic nervous system
Post-ganglionic nerve fibers: They originate from the ganglia of the parasympathetic nervous system and terminate at the target organs, the post-ganglionic fibers are short in case of the parasympathetic system because the ganglia are present near the target organs
There are different processes in the body that are under the control of parasympathetic nervous system, namely, blood pressure, heart rate, respiration, digestion and urination
Answer: Cells make up the smallest level of a living organism such as yourself and other living things. The cellular level of an organism is where the metabolic processes occur that keep the organism alive. That is why the cell is called the fundamental unit of life.
