A substance (adrenaline or noradrenaline) released from presynaptic neurons, diffusing across the synaptic cleft in order to bind with receptors on the membrane of a postsynaptic target cell. It causes excitation due to cellular depolarization.
back to topDrugs which aid the dilatation of constructed arteries.
back to topNeurotransmitter for sympathetic neurons. It is a hormone which brings about vasoconstriction, elevated heart rate, and elevated blood pressure. Norepinephrine.
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