Autonomic Pharmacology Flashcards

(42 cards)

1
Q
fight, fright or flight
sympathetic stimulation
heart rate - \_\_\_\_\_\_\_
feel cold - shunt blood to \_\_\_\_\_\_
breathing - \_\_\_\_\_\_\_ of bronchi
pupils \_\_\_\_\_ - enhance visual acuity
\_\_\_\_ mouth
mobilize body's stored \_\_\_\_\_\_\_
metabolic: \_\_\_\_\_\_\_ and increased \_\_\_\_
-blood vessels: \_\_\_\_\_\_ in skin/mucosa
A
increases
muscles
dilation
dilate
dry
energy
glycogenolysis
BMR
constriction
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2
Q

sympathetic nervous system

  • ________, _______. ________ & _______
  • catecholamines
  • synthesized in _____ tissues
  • stored in _______ vesicles
  • epinephrine = _________
  • secreted from ________
A
epinephrine, norepinephrine, serotonin, & dopamine
neural
synaptic
adrenaline
adrenal gland
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3
Q
adrenergic receptors
receptors for epinephrine and norepinephrine
two types of receptors:
\_\_\_\_\_
\_\_\_
\_\_\_ - presynaptic

_____
__
__

what is an alpha 2 stimulant?? and what would it do
-used when beta blockers arent working

A
alpha
a1
a2
beta
b1
b2
clonidine
decrease blood pressure
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4
Q

adrenergic agonists
agonists
-mimic the action of ___
-sympathomimetics

-stimulate \_\_\_\_\_\_\_ receptors
clinical applications
-shock - \_\_\_\_\_\_\_
-cardiovascular - \_\_\_\_\_\_\_\_; \_\_\_\_\_\_\_; \_\_\_\_; \_\_\_\_\_\_
-\_\_\_\_\_\_\_\_
A
NE
adrenergic
anaphylaxis
bradycardia; hypotension; CHF; cardiac arrest
asthma
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5
Q
adrenergic agonists
two types:
1. catecholamines
-\_\_\_\_\_\_\_, \_\_\_\_\_\_, \_\_\_\_\_\_
-\_\_\_\_\_\_\_
2. noncatecholamines
-\_\_\_\_\_\_\_
-\_\_\_\_\_\_\_\_\_(derivative of \_\_\_\_\_\_\_) - increase blood pressure
-\_\_\_\_\_\_\_\_\_ (\_\_\_\_\_\_\_\_)

_______ is ephedrine which is a __ stimulant found in nasal passages which cause them to constrict

A
norepinephrine, epinephrine, dopamine
serotonin
ephedrine
amphetamine
ephedrine
phenylephrine
neo-synephrine
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6
Q

adrenergic agonists

  1. Catecholamines
    - _________ is prototype
    - drug of choice to relieve _______
    - ________ edema in anaphylactic shock
    - _______
    - used in ________
    - metabolized by BOTH _____ and ____
    - not given PO: destroyed by __/__ enzymes
A
epinephrine
bronchospasm
laryngeal
cardiac arrest
hypovolemic shock
COMT and MAO
GI/Liver enzymes
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7
Q

adrenergic agonists

  1. non-catecholamines
    - ______, ______, _______
    - metabolized slowly by ___ and NOT inactivated by ____
    - _____ half lives
    - can be given _____
    - crosses BBB - centrally _____
    - ephedrine available ___
A
ephedrine, phenylephrine, terbutaline
MAO, COMT
longer
orally
active
OTC
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8
Q

inactivating enzymes

  • rapid metabolism by
  • _______ (___)
  • present in liver; intestinal and __synaptic nerve endings
  • ______________ (___)
  • present in liver; intestinal wall and ___synaptic nerve endings
  • ORAL administration is _______ (enzyme present in intestinal wall)
  • _______ requires slow infusion, subcutateous or intramuscular
A
monoamine oxidase (MAO)
pre
catechol-O-methyltransferase (COMT)
post
ineffective 
dopamine
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9
Q
adrenergic agonists: pharmacological actions
-CNS: \_\_\_\_\_/\_\_\_\_\_/\_\_\_\_\_\_
-CVS: increased \_\_\_\_\_, increased \_\_\_
-vasoconstriction: \_\_\_\_\_\_\_
-eye: \_\_\_\_\_\_/decreased \_\_\_
respiratory: \_\_\_\_\_\_\_\_\_\_
metabolic: \_\_\_\_\_\_\_ and increased \_\_\_\_
blood vessels: constriction in \_\_\_\_/\_\_\_\_\_
A
excitement, stimulation, anxiety
heart rate, BP
epinephrine
mydriasis, IOP
bronchodilatation
glycogenolysis, BMR
skin, mucosa
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10
Q

adrenergic agonists - clinical uses
beta 1 receptor (heart)
clinical application - mainly on heart
-_______ - ______ to “kick start” a stopped heart, use when all other methods have failed
-____ failure - b1 receptor activation results in a positive _____ effect (force of contraction); thus improved cardiac performance
- shock (profound ________; tissue ______)
-may cause ________ (excessive heart rate)
-may cause _______ (irregular heartbeat

A
cardiac arrest
epinephrine
heart failure
inotropic
hypotension, perfusion
tachycardia
dysrrythmias
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11
Q
adrenergic agonist - clinical uses
beta 2 receptor (lungs & uterus)
-activated by
-\_\_\_\_\_\_; albuterol (\_\_\_\_\_\_\_)
clinical application
-asthma - \_\_\_\_\_\_\_
- \_\_\_\_\_\_ (\_\_\_\_\_\_): drug of choice for asthma
delay \_\_\_\_\_ labor
-b2 receptor activation relaxes  uterine smooth muscle (\_\_\_\_\_\_\_)
A
epinephrine
selective agonist
bronchodilatation
albuterol, ventolin
preterm
isoproterenol
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12
Q

pharmacological effects
cardiovascular system - heart
-mainly __ receptors, some __ and _ effects
beta receptor activation
-increased ______ influx in cardiac cells
-increased _______ activity, positive ______ effect
-increased in conduction velocity in __ node, positive ______ effect
-increased ______ contractility, positive _____ effect

A
b1, b2, a
calcium
pacemaker, chronotropic
AV
Dromotropic
intrinsic 
lnotropic
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13
Q

pharmacological effects
eye
-__ receptors activate _________ dilator muscles of the iris
-receptor activation causes _______
-_ agonists increase the outflow of _________ from the eye
-__ antagonists decrease the production of aqueous uhmor

A
a
radial pupillary
mydriasis
aqueous humor
b
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14
Q

pharmalogical effects
respiratory tract
-__ receptors on bronchial smooth muscle
-activation cause _______
-__ agonists: _______ (ventolin)
-upper resp tract mucosa contain ___ receptors
-stimulation causes _______ action of ______

A
b2
relaxation
b 
albuterol
a1
decongestant 
andrenoceptors
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15
Q

pharmalogical effects
gastrointestinal tract

b receptors - activation causes relaxation via _______ and decreased ____ activity in these cells

a2- selective agonists
-decrease muscle activity _____ by reducing the release of _______ and possibly other stimulants in the GIT

A

hyperpolarization
spike
indirectly
acetylcholine

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16
Q

exocrine glands

  • salivary glands contains _____ that regulate the secretion of _____ and ___
  • decreased _______/_____
  • _______ sweat glands respond to adrenoceptor stimulants with _____ sweat production
A
adrenoceptors
amylase, water
salivation/xerostomia
apocrine
increased
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17
Q

pharmacologic
metabolic effects
-adipose cells
- __ adrenoceptor activation increases ____
-increased __________
liver
-________ drugs enhance _______, leading to increased glucose release into the circulation - mainly via __ receptors

A
B, lipolysis
gluconeogenesis
sympathoimetic
glycogenolysis
B
18
Q
USES of adrenergic agonists
anaphylactic shock 
-severe allergy; type I anaphylaxis
clinical signs
-\_\_\_\_\_\_\_ (widespread vasodilation)
-\_\_\_\_\_\_\_\_ & \_\_\_\_\_ of glottis
emergency management
-\_\_\_\_\_\_\_\_ (subcutaneous, IM) just get it in!
-\_\_: increase CO, elevate BP
-\_\_: vasoconstriction leading to an increase in \_\_ & suppress \_\_\_\_
-\_\_: bronchodilatation
A
hypotension
bronchoconstriction, edema
epinephrine
beta 1
alpha 1
BP, edema
b2
19
Q

adrenergic receptor activation mechanisms

  1. _________
    adrenergic agonists
    __________
    isoproterenol
  2. promote ___ release
    - _______
3. \_\_\_\_\_\_\_\_
cocaine
tricyclic antidepressants
imipramine (Tofranil)
amitryptline (Elavil)
doxepin ( Sinequan)
  1. _________
    ____ inhibitors
    - phenelzine (Naril)
    - trancyclpromine (parcate

2 3 AND 4 ARE INDIRECT ACTING ADRENERGIC AGONISTS

A
adrenergic agonists
epinephrine
isoproterenol
NE
amphetamines
inhibit NE reuptake
inhibit NE activation
MAO
20
Q
adrenergic antagonists
-drugs that block \_\_\_\_\_\_ receptors
-two groups
alpha adrenergic blocking agents
-non-selective: block a1 and a2 (\_\_\_\_\_\_\_\_\_, \_\_\_\_\_\_\_\_\_)
selective: block \_\_ only (\_\_\_\_\_, \_\_\_\_\_\_)
beta-adrenergic blocking agents
-non-selective: block b1 and b2 (\_\_\_\_\_\_\_\_\_)
selective blocks \_\_ only (\_\_\_\_\_\_\_)
A
adrenergic 
phentolamine, phenoxybenzamine
a1
prazosin, terazosin
propranolol
b1
atenolol
21
Q

alpha (a) adrenergic antagonists

  • blood vessel (______)
  • essential hypertension: lowers blood pressure via massive _________

__________

  • catecholamine secreting tumor in the adrenal _______
  • in patients with very hypertensive crisis or malignant hypertension (bloodpressure > 180/120 mm Hg)
A

vasodilation
vasodilation
pheocromocytoma
medulla

22
Q

alpha adrenergic antagonists
Raynaud’s disease
-_____ induced disease (_______)
-peripheral vascular disorder, ______ in ___ & _____

A

smoking, nicotine
vasospasm
toes, fingers

23
Q

alpha 1 antagonists
________ (minipress)
-competitive a1 antagonist (selective)
indication - ______

other a1 antagonists

  • _______ (Hytrin)
  • ______ (Regitine)
  • _________ (Dibenzyline)
A
Prazosin
hypertension
Terazosin
Phentolamine
Phenoxybenzamine
24
Q

Beta Blockers

  • competitively block receptors in autonomic nervous system
  • their names end in __
  • beta stimulation produces ________, ________ and ______: beta blockers reverse these effecs
  • effects: initially _______ followed by ______, ____ and _______
  • ______, ______, ________
A
olol
vasoconstriction, bronchodilation, tachycardia
vasoconstriction
vasodilation
bradycardia
bronchoconstriction
propanolol, atenolol, metoprolol
25
beta blockers - b1 blockage of cardiac tissue results in -_______ heart rate -reduced force of _______ -reduced _______ of impulse conduction via ___ node thus reduced _______ -b2 antagonists -b2 blockage causes _________ minimal clinical uses
``` decreased contraction velocity AV cardiac workload bronchospasm ```
26
``` b1 adrenergic antagonists clinical application of b1 blockage - ________ -______ -______ -_____ -______ ```
``` heart failure hyperthyroidism migraine stage fright glaucoma ```
27
``` autonomic nervous system parasympathetic -decreased _________ - fall in ______ -constriction of the _____ (miosis) -contraction of the ___ -watery secretion of _____ neurotransmitter ```
``` heart rate blood pressure pupil GIT saliva ```
28
synthesis and storage -ACh is synthesized from ______ and _____ via __________ (CAT) -ACh sythensis is a rapid process -synthesized ACh is transported into vesicles by a transporter -metabolized by _________ (____) acetyl Co A - synthesized in the _______ choline - transported from ___ into nerve terminal, by a transporter (carrier)
``` Acetyl-Co-A choline choline acetyl transferase cholinesterase enzyme (AChE) mitochondria ECF ```
29
acetylcholine effects: -heart: negative _____ and negative ______ effect. Decrease in ______ -blood vessels: ________ of smooth muscle, ______ -bronchi: _______, ________ GIT: increased ____, _____ and ______ EYE: ____ and ____. decreases ___
``` inotropic chronotropic cardiac output relaxation vasodilation bronchoconstriction, bronchospasm motility, contraction, secretion miosis, cycloplegia IOP ```
30
cholinergic receptors -receptors for acetylcholine have 2 subtypes _________ (M) - __________ (Amanita muscaria) ________ (N) - ______ in tobacco
muscarinic poisonous mushroom nicotinic nicotine
31
cholinergics classified as: -directly acting - act directly on receptor - ______- -indirectly acting - act by inhibiting the destruction of Ach by ________ further divided into reversible: ________ irreversible: ________
pilocarpine cholinesterase neostigmine organophosphates
32
``` cholinergics direct acting _________ (used for urinary retention) -causes contraction of ______ should not be used in patients with mechanical obstruction of the _____ or ____- ________ (used for glaucoma) (______) ```
``` bethanechol bladder bladde,r GI tract pilocarpine Salogen ```
33
``` anticholinergics -prevent action of ________ -______ is not affected -receptor is competitively blocked -anticholinergics only block _______ action ... no effect of nicotinic -action blocked: ______, ____, ______ ```
acetylcholine release muscarinic smooth muscles, glands, heart
34
``` belladonna alkaloids plant sources: ________ atropa bella donna means beautiful lady; __________ examples 1 2 ```
atropine pupillary dilation scopolamine atropine
35
``` anticholinergics atropine and scopolomine (given _______ or _______) -________ (Atrovent inhaler/oral) -________ (spiriva) ```
orally, topical Ipratropium tiotropium
36
``` anticholinergics Pharmacologic effects -decreased _______ -smooth muscles: ______ -________ and _______ -eye: ______ and _______ -CVS: positive ______ and _______ effectts result in tachycardia ```
``` secretions relaxed bronchodilation, constipation mydriasis, cycloplegia inotropic, chronotropic ```
37
``` atropine & scopolamine GI effects -secretions: decrease _______ -relax GI muscle except _____ and reduce intestinal ____ -decrease ______ secretion ``` urinary tract effects -inhibit the contractility of the urinary bladder and may cause ______ retention
``` salivation sphincters motility gastric acid urinary ```
38
``` adverse effects atropine & scopolomine extensions of the phrmacological effects -blurred vision (_____) -photophobia (______) -xerostomia (______) -_______ -_________ retention ```
``` cycloplegia mydriasis dry mouth tachycardia urinary/gi ```
39
atropine & scopolomine contraindications -_____: increased IOP in glaucoma -prostatic hypertrophy (BPH): urinary ______ intestinal or urinary obstruction: _______ risk -cardiovascular diseases: ______/______
glaucoma retention perforation tachycardia, arrythmias
40
atropine & scopolomine -respiratory: relax bronchi - therefore used in ________ CNS effects -_____: causes milkd stimulation followed y slower and longer-lasting sedative effects (CNS depression) scopolomine is more ____ than atropine uses: ____________ patches - prevent motion sickness (Transderm V)
asthma atropine sedating transdermal scolopamine patches
41
atropine & scopolomine pre-operative medication: to decrease ____, ___ secretions -GIT disorders: _____ and increased _____: Ulcers/Traveler's diarrhea -Irritable Bowel syndrome: ___________ -Eye exams: ______ measurements -Motion sickness: ________ -post prostatectomy bladder spasm/ involuntary voiding: _______(_____)
``` bronchial, GIT hyperacidity motility dicyclonine refractive scopolomine oxybutynin (ditropan) ```
42
``` nicotine preparations nicotine inhaler: _______ (nasal) nicotine chewing gum - ________ -______ (Varenicline) -Nicotine transdermal - _______ ```
nicotrol nicorette champix nicoderm