noradrenaline /nor·adren·a·line/ (nor″ah-dren´ah-lin) norepinephrine.
norepinephrine [nor″ep-ĭ-nef´rin]
noradrenaline (nōrˈ·
·drenˑ··lin),
noradrenaline
norepinephrine [nor″ep-ĭ-nef´rin]
a catecholamine that is the neurotransmitter of most sympathetic postganglionic neurons and also of certain tracts in the central nervous system. It is also a neurohormone stored in the chromaffin granules of the adrenal medulla and released in response to sympathetic stimulation, primarily in response to hypotension. It produces vasoconstriction, an increase in heart rate, and elevation of blood pressure. It is administered intravenously in the form of the bitartrate salt as a vasopressor to restore blood pressure in certain cases of acute hypotension and to improve cardiac function during decompensation associated with congestive heart failure or cardiovascular surgery. Called also noradrenaline.
noradrenaline (nōrˈ·
·drenˑ··lin),n See norepinephrine.
noradrenaline
see norepinephrine.
noradrenaline (norepinephrine)
A neurohumoral transmitter for most postganglionic sympathetic fibres. It is produced with adrenaline (epinephrine) in the adrenal medulla. It is a powerful excitator of α-adrenergic receptors. See adrenaline (epinephrine); adrenergic receptors; mydriatic; neurotransmitter.
noradrenaline
Norepinephrine, see there
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