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12 Cards in this Set
- Front
- Back
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Two divisions of the autonomic nervous system |
Parasympathetic (pans) cranial sacral one to one ratio preganglionic postganglionic fibers equal = specific effects Sympathetic sans heiress of lumbar cell bodies one too many ratio preganglionic post postganglionic fibers = different effects |
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Parasympathetic craniosacral |
Rest and digest cholinergic system acetylcholine |
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Thoraco lumbar sympathetic system fight and flight and Andrenergic system |
Acetylcholine, 1st synapse is the target of the adrenal medulla of sans it then releases norepinephrine and epinephrine |
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Somatic system skeletal muscle |
Blocks acetylcholine via curare like drugs |
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Parasympathetic |
Pupil constriction / near vision Decreased heart rate / BP Bronchoconstriction Increased GI motility / digestion Stimulate secretions: Saliva - thin Lacrimal - tears Bronchial Nasopharyngeal Gi Increased urine - bladder Stimulate sex organs |
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Sympathetic |
Pupil dilation / distant vision Increased heart rate (B1)/ BP Constrict vessels / skin alpha muscles Bronchodilation (B2) Decreased GI motility Adrenal medulla -epi release Constrict pilomotor skin muscles Palms of hands sweat Dilate vessels / muscles Bronchodilation (B2)Decreased GI motility Adrenal medulla -epi releaseConstrict pilomotor skin musclesPalms of hands sweat Sweat - anxiety induced AchSecretion of EPI From adrenal from adrenal medullaDecreased urine bladder Inhibit sex organs Thickens saliva Sweat - anxiety induced Ach Secretion of EPI From adrenal from adrenal medulla Decreased urine bladder Inhibit sex organs Thickens saliva |
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Carbachol/pilocarpine |
Glaucoma reduce intraocular pressure parasympathomimetic |
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Myasthenia gravis/neostigmine |
Glaucoma to reduce intraocular pressure |
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Bethanechol |
Promotes urine flow increases GI Mobility especially after general surgery |
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Pilocarpine |
Xerostomia limited use |
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Aricept |
Alzheimer dementia |
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Parasympathomimetic contraindications |
Asthma think bronchoconstriction Peptic ulcer think GI secretions down |
