Sympathetic vs parasympathetic nervous system (autonomic) nursing review on the anatomy, pharmacology, and physiology.
The sympathetic and parasympathetic nervous system are part of the AUTONOMIC nervous System, which is part of the PERIPHERAL NERVOUS SYSTEM.
The peripheral nervous system arises out of the central nervous system, which is the brain and spinal cord.
The peripheral nervous system is divided into two parts: somatic (this controls our voluntary functions) and autonomic (this controls the involuntary functions of the internal organs and glands).
The autonomic system is unique because it has TWO neurons that synapse (come together) in an autonomic ganglion. Therefore, this system has a preganglionic and postganglionic neuron.
The sympathetic nervous system is known as the fight or flight system, while the parasympathetic is known as the rest and digest.
The sympathetic nervous system preganglionic neuron is made up of cholinergic fibers and releases the neurotransmitter acetylcholine. While its postganglionic neuron is made up of adrenergic fibers and releases the neurotransmitter norepinephrine.
The parasympathetic nervous system is slightly different because its postganglionic neuron is made up of cholinergic fibers and releases the neurotransmitter acetylcholine.
In this video we will discuss sympathetic and parasympathetic pharmacology, which will include a discussion about sympathomimetics, parasympathomimetics, sympatholytics, and parasympatholytics drugs.
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