Ch 16
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11 terms
Terms | Definitions |
|---|---|
 autonomic nervous system | nerves that control involuntary body functions of muscles, glands, and internal organs sympathetic nervous system parasympathetic nervous system |
| Major effects of the sympathetic nervous system | increase in cardiac rate and output* constriction of blood vessels in skin and viscera* elevation of blood pressure* elevation of blood glucose* relaxation of smooth muscle in bronchi decrease in peristalsis tightening of sphincters promotion of urinary retention Dilation of pupils Note: * these are emergency reactions of the body. |
| Major effects of the parasympathetic nervous system | Decrease in cardia rate and output Dilation of blood vessels in skin and viscera Lowering of blood prussure No effects on blood glucose Constriction of smooth muscle in bronchi Increases peristalsis Relaxtion of sphincters Decrease in urinary retention Constriction of pupils |
| Sympathomimetic (Adrenergic) Agents | epinephrine (Adrenalin, Epi-pen) metarminol (Aramine) norepinephrine injection (Levophed) phenylephrine (Neo-Synephrine) |
| Sympatholytic (Adrenergic blocking) Agents | atenolon (Tenormin) clonidine (Catapres) prazosin (Minipress) propranolol (Inderal) |
| Ergot Alkaloids | ergotamine (Gymergen) |
| Parasympathomimetic (Cholinergic) Agents | *bethanechol (Urecholine) similar in action to acetycholine but less active and less toxic. *neostigmine (Prostigmin) *pilocarpine |
| Belladonna | atropine (Atropen) |
| Atropine poisoning | first indication is headache, dryness of throat and skin, dilated pupils, and dimness of vision. Skin is flushed and a rash may appear. Temp increases and pulse is rapid. |
| Atropine poisoning Antidote | Gastric lavage along with parasympathomimetic drugs such as pilocarpine or tannic acid (tea). |
| Neuromuscular Blocking agents | succinylcholine (Anectine)- relaxes the body. |
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