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22 Cards in this Set

  • Front
  • Back
nerve ending that releases NE as primary transmitter, also a synapse in which NE is primary transmitter
receptor that binds and is activated by one of the catecholamine transmitters (NE, Epi, Dopamine)
autonomic effector cells or tissues
cells or tissues that have adrenoceptors or cholinoceptors, which when activated, alter the function of those cells or tissues
baroreceptor reflex
the neuronal homeostatic mechanism, that the body uses to maintain BP constant, sensory limb originates in baroreceptors of carotid sinus
nerve ending that releases Ach as primary transmitter, synapse in which Ach is primary transmitter
receptor that binds and is activated by Ach
nerve ending that releases dopamine as primary transmitter, synapse in which dopamine is primary transmitter
homeostatic reflex
neuronal compensatory mechanism for maintaining a body function at a predetermined level
part of ANS that originates in cranial nerves and sacral part of SC
choline ester
cholinomimetic drug consisting of choline (alcohol) esterified with an acidic substance
cholinergic crisis
clinical condition of excessive activation of cholinoceptors (bradycardia)
cholinomimetic alkaloid
drug with weakly basic properties (plant origin) whose effects resemble those of Ach (digoxin)
marked contraction of ciliary muscle, maximum accommodation (adjusting lens)
direct-acting cholinomimetic drug
one that binds and activates cholinoceptors; effects mimic Ach
endothelium-derived relaxing factor (EDRF)
potent vasodilator substance, largely NO, that is released from vascular endothelium cells
indirect-acting cholinomimetic drug
one that amplifies the effects of endogenous Ach by inhibiting Achase
muscarinic agonist
cholinomimetic drug with primarily muscarinic-like actions
myasthenic crisis
in pts. with myasthenia, an acute condition (skeletal muscle weakness) caused by inadequate cholinomimetic treatment (not getting enough Ach)
nicotinic agonist
cholinomimetic drug with primary nicotine-like actions
an ester of phosphoric acid and an organic alcohol that inhibits cholinesterase (so increase in Ach)
organophosphate aging
process whereby the organophosphate, after binding to cholinesterase, is chemically modified and becomes more firmly bound to enzyme
parasympathomimetic drug
one whose effects resemble those of stimulating that parasympathetic nerves