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125 Cards in this Set

  • Front
  • Back
The ANS functions to ______________
Automatically regulate body systems like cardiac, vasculature, lungs, saliva flow, etc.
Sensory nerve fibers are also called ___________ fibers
Afferent
Motor nerve fibers are also called _________ fibers
Efferent
Nerve fibers that occur before that neuron synapses with another neuron in the ganglia are called ___________
Preganglionic nerve fibers
Nerve fibers that occur after the synapse
Postganglionic nerve fibers
The space between pre/postganglionic nerve fibers is called the ______ or _____ _______
Synapse or synaptic cleft
This part of the ANS exits the spine at the cranial and caudal ends of the spine
Parasympathetic nervous system
The "main" nerve of the PNS
Vagus nerve
This part of the ANS exits in the thoracolumbar region of the spine
Sympathetic nervous system
This organ sits on the top of the kidney and also secretes epinephrine and norepinephrine into the circulation
Adrenal gland
The part of the adrenal gland that contains the epi/norepinephrine
Adrenal medulla
A term used to describe the effects of the SNS
Fight or flight system
Chemicals released into the synapse that stimulate the postganglionic fiber to fire
Neurotransmitters
The neurotransmitter present in the ganglia of the ANS is ____________
Acetylcholine
The part of the adrenal gland that contains the epi/norepinephrine
Adrenal medulla
Tissue that responds to muscarine is identified as _____________
Muscarinic
A term used to describe the effects of the SNS
Fight or flight system
A drug that acts at the location where acetylcholine is released is termed ___________
Cholinergic
Chemicals released into the synapse that stimulate the postganglionic fiber to fire
Neurotransmitters
The part of the adrenal gland that contains the epi/norepinephrine
Adrenal medulla
A drug that acts at the location where NE is released is _______________
Adrenergic
The neurotransmitter present in the ganglia of the ANS is ____________
Acetylcholine
A term used to describe the effects of the SNS
Fight or flight system
A drug that acts at the location where the PNS acts has the prefix ___________
Parasympatho-
Chemicals released into the synapse that stimulate the postganglionic fiber to fire
Neurotransmitters
Tissue that responds to muscarine is identified as _____________
Muscarinic
A drug that acts where the SNS acts has the prefex ___________
Sympatho-
A drug that acts at the location where acetylcholine is released is termed ___________
Cholinergic
The neurotransmitter present in the ganglia of the ANS is ____________
Acetylcholine
A drug that acts where the ANS acts and produces the same effect as the neurotransmitter has the suffix ___________
-Mimetic
A drug that acts at the location where NE is released is _______________
Adrenergic
Tissue that responds to muscarine is identified as _____________
Muscarinic
A drug that acts at the location where the PNS acts has the prefix ___________
Parasympatho-
A drug that acts at the location where acetylcholine is released is termed ___________
Cholinergic
A drug that acts where the SNS acts has the prefex ___________
Sympatho-
A drug that acts at the location where NE is released is _______________
Adrenergic
A drug that acts where the ANS acts and produces the same effect as the neurotransmitter has the suffix ___________
-Mimetic
A drug that acts at the location where the PNS acts has the prefix ___________
Parasympatho-
A drug that acts where the SNS acts has the prefex ___________
Sympatho-
A drug that acts where the ANS acts and produces the same effect as the neurotransmitter has the suffix ___________
-Mimetic
The part of the adrenal gland that contains the epi/norepinephrine
Adrenal medulla
A term used to describe the effects of the SNS
Fight or flight system
Chemicals released into the synapse that stimulate the postganglionic fiber to fire
Neurotransmitters
The neurotransmitter present in the ganglia of the ANS is ____________
Acetylcholine
Tissue that responds to muscarine is identified as _____________
Muscarinic
A drug that acts at the location where acetylcholine is released is termed ___________
Cholinergic
A drug that acts at the location where NE is released is _______________
Adrenergic
A drug that acts at the location where the PNS acts has the prefix ___________
Parasympatho-
A drug that acts where the SNS acts has the prefex ___________
Sympatho-
A drug that acts where the ANS acts and produces the same effect as the neurotransmitter has the suffix ___________
-Mimetic
The part of the adrenal gland that contains the epi/norepinephrine
Adrenal medulla
A term used to describe the effects of the SNS
Fight or flight system
Chemicals released into the synapse that stimulate the postganglionic fiber to fire
Neurotransmitters
The neurotransmitter present in the ganglia of the ANS is ____________
Acetylcholine
Tissue that responds to muscarine is identified as _____________
Muscarinic
A drug that acts at the location where acetylcholine is released is termed ___________
Cholinergic
A drug that acts at the location where NE is released is _______________
Adrenergic
A drug that acts at the location where the PNS acts has the prefix ___________
Parasympatho-
A drug that acts where the SNS acts has the prefex ___________
Sympatho-
The part of the adrenal gland that contains the epi/norepinephrine
Adrenal medulla
A drug that acts where the ANS acts and produces the same effect as the neurotransmitter has the suffix ___________
-Mimetic
A term used to describe the effects of the SNS
Fight or flight system
Chemicals released into the synapse that stimulate the postganglionic fiber to fire
Neurotransmitters
The neurotransmitter present in the ganglia of the ANS is ____________
Acetylcholine
Tissue that responds to muscarine is identified as _____________
Muscarinic
A drug that acts at the location where acetylcholine is released is termed ___________
Cholinergic
A drug that acts at the location where NE is released is _______________
Adrenergic
A drug that acts at the location where the PNS acts has the prefix ___________
Parasympatho-
A drug that acts where the SNS acts has the prefex ___________
Sympatho-
A drug that acts where the ANS acts and produces the same effect as the neurotransmitter has the suffix ___________
-Mimetic
A drug that acts at the location where the ANS acts but blocks the action of the neurotransmitter has the suffix ________ or ________
-Lytic or -blocker
The structures in the neuron terminals that contains and stores the neurotransmitter are called ____________
Vesicles
A nerve action potential is also called ____________
Depolarization
Return of a neuron to it's original electrical state after depolarization is called _______________
Repolarization
An enzyme that gets rid of acetylcholine
Acetylcholinesterase
Direct acting cholinergic agents work by _____________
Stimulating a receptor
Indirect acting cholinergic agents work by _____________
Causing the release of neurotransmitter which then stimulates the receptor
Another indirect acting Parasympathomimetic agent works by inhibiting the enzyme _______________
Acetylcholinesterase
Cholinergic drug effects on the heart
Negative chronotropic and negative inotropic action (Decreased cardiac outpu, decreased BP/HR)
florid
adj. very fancy, usually refers to intangible objects (ie. florid speech)
Parasympathomimetic drug effects on the eye
Miosis only
Toxic effects of cholinergic agents are described by this acronym
SLUD Salivation, lacrimation, urination, and defecation
Relative contraindications to cholinergic agents
Bronchial asthma, hyperthyroidism, GI or GU tract obstruction, severe cardiac disease, myasthenia gravis treated with neostigmine and peptic ulcer disease
A condition of the eye treated with cholinergic agents to decrease the IOP (intraocular pressure)
Glaucoma
A naturally occurring cholinergic agent used in the treatment of xerostomia is ________ (__________)
Pilocarpine (Salagen)
Indirect acting cholinergic agents called cholinesterase inhibitors. Name three
Edrophonium, physostigmine and neostigmine
Examples of irreversible cholinesterase inhibitors (warfare agents)
Parathion, malathion, and sarin
Drugs that block the muscarinic receptors and not nicotinic receptors are called ________ agents
Muscarinic
Tertiary anticholinergic (parasympatholytic) agents
Atropine/scopolamine
Quaternary anticholinergic agents
Propantheline and glycopyrrolate
Do tertiary anticholinergics or quaternary anticholinergics cross into the brain
tertiary agents cross
CNS effects of anticholinergics
Excitement or sedation depending on dosage
Anticholinergic effects on exocrine glands
Decreased flow and volume of secretions
Smooth muscle effects of anticholinergics
Bronchodilation delayed gastric emptying, decreased motility
Anticholinergic eye effects
Mydriasis and cycloplegia
Anticholinergic cardiovascular effects
Tachycardia with large doses. May get bradycardia with small doses
Adverse reactions to anticholinergics
Xerostomia, photophobia, blurry vision, tachycardia, fever, GU/GI stasis, delerium, hallucinations, convulsions
Contraindications to anticholinergics
Narrow-angle glaucoma, prostatic hypertrophy, GI or GU obstruction or retention, Cardiovascular disease
Uses of anticholinergics
preoperative medication to prevent heart slowing and decrease airway secretions, GI motility disorders, eye exam, reduction of parkinson-like movements, motion sickness
Two major neurotransmitters in SNS
Norepinephrine/Epinephrine
Which neurotransmitter is most commonly released at the terminal nerve endings in the SNS
Norepinephrine
What is generally released in the larger amounts from the adrenal medulla
Epinephrine
Dopamine receptors tend to be found in these areas
brain, splanchnic/renal vessels
A term given for NE, epi, dopamine, isoproterenol
Catecholamine
Adrenergic drugs can work in one of these three ways:
Direct acting on receptor site.
Indirect acting by causing release of NE.
Mixed which can do both
Name the two enzyme systems which metabolize epinephrine and NE
Monoamine oxidase (MAO), and catechol-O-methyltransferase (COMT)
Name three types of adrenergic receptors
Alpha, Beta, Dopamine
Alpha -1 receptors cause:
Vasoconstriction
Beta-1 receptors cause:
Increase HR & inotropy of heart
Beta-2 receptors cause:
Smooth muscle relaxation (bronchodilation & vasodilation)
Epinephrine stimulates what adrenergic receptors?
Alpha and Beta
NE and phenylephrine stimulate primarily what receptors
Alpha
Isoproterenol stimulates the ________ receptors
Beta
CNS effects of sympathomimetic drugs (adrenergic agents)
Excitation, anxiety, apprehension, restlessness, and tremor
Adrenergic drug heart effects
Increase HR/inotropy. Effects vary somewhat by drug
Adrenergic blood vessel responses
Alpha causes vasoconstriction in skin/mucosa. Beta stimulation causes vasodilation in skeletal muscle
BP response to adrenergic drugs
Increase in BP`
Eye effects of adrenergics
Decrease in IOP and mydriasis
Respiratory effects of adrenergics
Beta-2 receptor stimulation causes bronchodilation
Metabolic effects of adrenergics
Hyperglycemia due to increased glyogenolysis/decreased insulin release, lipolysis, and gluconeogenesis. (Increase in BMR)
Salivary gland effects
Submaxillary/sublingual-thick saliva. Parotid no SNS innervation but still decreased saliva production
Adrenergic relative contraindications
Hypertension, angina, MI history, hyperthyroidism, arrhythmias
Uses of Adrenergic drugs
Vasoconstriction for longer local anesthetic effect and hemostasis, decongestion, shock, bronchodilation, CNS stimulation
A disease in which spontaneous deep sleep can occur at any time
Narcolepsy
Adrenergic blockers cause what vascular effect
Vasodilation, decreased PVR, decrease BP with reflex vagal tachycardia