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29 terms

Pharmacology of the autonomic Nervous System

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acetylcholine (A Ch)
the chemical neurotransmitter of skeletal muscles, the preganglionic sites of both the parasympathetic and the sympathetic nervous system, and the postganglionic sites of the parasympathetic nervous system
acetylcholinesterase (A ChE)
also known as cholinesterase. The enzyme that deactivates actylcholine
adrenergic agents
agents that stimulate the sympathetic nervous system
adrenergic receptors
receptors of the sympathetic nervous system that include alpha and beta receptors
afferent nerves
nerves that carry impulses to the brain and spinal cord. Also known as sensory nerves
alpha receptors
receptors found in the sympathetic nervous system that generally cause vasoconstriction
antiadrenergics
agents that block the effects of the sympathetic nervous system
anticholinergic
agents that block the effects of the parasympathetic nervous system
autonomic nervous system (ANS)
the nervous system that controls the involuntary responses and is divided into the parasympathetic and sympathetic branches
beta receptors
receptors found in the sympathetic nervous system that are divided int beta1 and beta 2 subcategories
central nervous system (CNS)
the nervous system comprised of the brain and spinal cord
cholinergic
referring to the parasympathetic nervous system where acetylcholine is the neurotransmitter substance at all granglionic sites
dopamine receptors
adgenergic receptors found in renal tissue that when stimulated , relax the renal arteries and therefor increase renal perfusion
efferent nerves
nerves that carry impulses away from the brain and spinal cord, also known as motor nerves
ganglion
nerve cell body outside of the brain and spinal cord
muscarinic receptors
receptors found at the postganglionic site of the parasympathetic nervous system
nicotinic receptors
receptors found at the postganglionic site of the parasympathetic nervous system
norepinephrine (NE)
the chemical neurotransmitter substance found at the postganglionic junction of the sympathetic nervous system
parasympathetic
branch of the peripheral nervous system that maintains normal body functions and homeostasis (feed and breed)
parasympatholyitc
agent that blocks or antagonizes the effects of the parasymphathetic system
parasympathomimetic
agent that stimulates the parasympathetic system
peripheral nervous system (PNS)
part of the nervous system comprised of all nerves outside the brain and spinal cord, includes the somatic and autonomic nervous system
reuptake
process wherein norepinephrine is deactivated at the sympathetic postganglionic sites
somatic nervous system
the part of the nervous system that controls skeletal muscles and therefore voluntary movement
sympathetic
the branch of the peripheral nervous system that prepares the body for strss and emergencies (flight or fight)
sympatholytic
agent that blocks or antagonizes the effects of the sympathetic system
sympatomimetic
agent that stimulates the sympathetic system
beta1 receptors
found primarily in the heart, when stimulated they cause an increase in the rate and force of contaction
Beta 2 receptors
found primarily in the lungs, when stimulated they cause bronchodilation