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Atropine effects

Effects of atropine on different physiologic processes

ProcessNormal PNS effect...Normal SNS effect...Effect of Atropine
Blood pressure no effect (vascular sm. m. only innervated by SNS) increase BP d/t vasoconstriction no effect
Pupillary size miosis (constriction) mydriasis (dilation) mydriasis (PNS blocked, SNS unmasked)
Accommodation for near vision stimulation (accommodates) n/a cycloplegia - lens can't accommodate well (PNS block)
Resistance to airflow in bronchial tree increased resistance (bronchoconstriction) relaxation, decreased resistance decrease resistance (block PNS)
GI motility stimulates inhibits decreases (block PNS)
Bladder function stimulates detrusor muscle, relaxes sphincter (stimulates bladder function) decrease detrusor tone, increase sphincter tone (inhibits bladder function) decrease bladder function (block PNS)
CNS function M1 receptors in brain n/a block normal PNS function --> confusion, delirium, amnesia, coma (higher than normal doses)
Secretions of exocrine glands (salivary, lacrimal, bronchial, sweat) stimulation stimulation (sweat glands, ACh release) decrease all secretions (block both PNS + SNS)
Heart rate inhibition (- chronotropy) stimulation (+ chronotropy) increase HR (PNS block, SNS unmasked)
Created by: eemolee27
Popular Pharmacology sets

 

 



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