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45 Cards in this Set
- Front
- Back
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used to dilate pupils during eye exam
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atropin
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used as preanesthetic to block PSNS and decrease secretions
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atropine
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treat angina
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propanolol
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definition ANS
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network of peripheral nerves involved in regulating the activity of glands, smooth muscle, and certian aspects of metabolism
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ultimate source of the ANS is ...
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the CNS
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clonidine mechanism of action?
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stimulates adrenergic receptors in CNS (inhibitory center) which decreases SNS outflow and decreases BP
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pregang fibers have (blank) while postgand do not
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myelinated axons
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SNS and PSNS have how many neurons in series?
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2
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somatic NS has how many neurons to the effector?
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1
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location of SNS ganglia?
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along the spinal cord
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location of PSNS ganglia?
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intramural
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length of SNS fibers
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short pregang
long postgang |
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length of PSNS fibers
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long pregang
short postgang |
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SNS pregang fiber is
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cholinergic
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SNS postgang fiber is
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adrenergic
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PSNS pregang fiber is
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cholinergic
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PSNS postgang fiber is
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cholinergic
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somatic NS one neuron releasing
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Ach at neuromusc junction
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pharmacologist cares about particular (blank) released
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neurotransmitter
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SNS eye
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mydriasis
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SNS resp system
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dilate bronchial tubed
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SNS heart
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incarease HR, AV conduction and contractility
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SNS liver
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glycogenolysis
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SNS GI
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decrease tone and motility
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SNS bladder
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relaxation
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innervation of arterioles exclusively by ...
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SNS
controls TPR and BP |
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sweat glands receive a SNS postganglion that releases
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acetylcholine
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adrenal medulle exception
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released neurohormone is 80 percent epinephrine
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PSNS eye
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miosis
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PSNS glands of head
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copious secretions
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PSNS resp system
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bronchial constriction
heavy secretions |
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PSNS heart
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decrease HR and AV conduction
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PSNS gut
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increase GI motility and tone
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PSNS bladder
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emptying
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SNS kidney
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decrease urine output
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SNS bladder
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detrusor muscle relaxed
trigone sphinctor constricted |
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PSNS bladder
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detrusor muscle contracted
trigone sphinctor relaxed |
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SNS penis
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ejaculation
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PSNS penis
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erection
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SNS adrenal medulla secretion
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increased
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baroreceptor reflex - if increase BP?
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increase afferents to CNS
decrease sympathetic output increase PSNS output decrease HR, TPR, BP |
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severe stretching of baroreceptors leads to
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high firing rate
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baroreceptor reflex if drop in BP?
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decrease firing
turn on SNS off PSNS increase HR, TPR, BP |
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what tone dominates on the heart?
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vagal PSNS to decrease HR
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what two drugs do you want in a code?
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epi to increase SNS
atropine to decrease PSNS |
