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ccctc test 5 def.

defenitions for test 5

what is the peripheral nervous system composed of all of the nerves outside the brain and spinal chord
what does the peripheral nervous system do these nerves transmit information to and from the brain via chemical and electrical messages
what are the nerves that send messages back to the CNS afferent nerves
what are the nerves that transmit messages from the CNS to the rest of the body efferent nerves
these nerves facilitate mobilization of the body for quick action ("fight or flight") sympathetic nerves
what are the chemical messengers for the sympathetic nerves norepinephrine and epinephrine
sympathetic reaction for the heart increased heart rate/pulse
sympathetic reaction for the lungs bronchial relaxation
sympathetic reaction for the blood vessels constricting blood vessels
sympathetic reaction for the GI tract decreased GI movement (constipation)
sympathetic reaction for the GU tract (detrusor) relaxation (holds urine)
sympathetic reaction for the GU tract (sphincter) contraction (holds urine)
nerves which direct restorative and conservative processes (feed and breed) parasympathetic nerves
what is the chemical messenger for the parasympathetic nerves acetylcholine
parasympathetic reaction for the heart decreased heart rate/lowered pulse
parasympathetic reaction for the lungs increased mucus secretion
parasympathetic reaction for the blood vessels dilation
parasympathetic reaction for the eyes decreased interocular pressure
parasympathetic reaction for the GI tract increased movement and secretion
parasympathetic reaction for the GU tract (detrusor) contraction (urination)
parasympathetic reaction for the GU tract (sphincter) relaxation (urination)
Sympathomimetic Agents The effects of these agents are complex and depend upon the specific receptor where the drugs exert their action.
uses for sympathomimetic agents hypertension, shock, heart block, asthma, decongestant, depression
side effects of sympathomimetic agents high blood pressure, increased heart rate, depends on the receptor site where the drugs exert effects
What are the 2 types of sympathomimetic agents direct and indirect acting
what do direct acting sympathomimetic agents do receptor agonists which mimic the effects of endogenous chemicals (norepinephrine and epinephrine) by combining with receptors in the sympathetic nervous system
what do indirect acting sympathomimetic agents do facilitate the release of norepinephrine or block the re-uptake of norepineprhine in the neuronal membrane
example: amphetamines' mechanism of action increase the release of Norepinephrine
example: tricyclic antidepressants' mechanism of action block re-uptake of Norepinephrine
sympatholytic (adrenergic blocking) agent uses hypertension, heart disease, and migraine headaches
sympatholytic (adrenergic blocking) agent mechanism of action oppose the action of the natural messengers, epinephrine and norepineprhine, at their receptor sites; often referred to as adrenergic antagonists (blockers)
sympatholytic (adrenergic blocking) agent side effects dizziness, fainting, nasal stuffiness
how many grams of pseudoephedrine can be purchased a day, a month, and at a kiosk 3.6g a day, 9g a month, and 7.5g at a kiosk
what are the 3 categories of sympatholytic (adrenergic blocking) agents in our book alpha blockers, beta blockers, and alpha/beta blockers
B-1 receptors affect the heart
B-2 receptors affect the lungs
what does psns stand for? parasympathetic nervous system
parasympathomimetic (cholinergic) agents uses glaucoma, bladder problems, gastrointestinal problems, alzheimer's disease
parasympathomimetic (cholinergic) agent mechanism of action mimic actions of acetylcholine; defecatio, urination, lacrimation, salivation, enhance the actions of the parasympathetic nervous system, may be direct action on receptors or indirect through inhibition of enzymes that destroy Acetylcholine
Created by: kfpolchies



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