who was he?
A Swedish physiologist and pharmacologist
Ulf von Euler
a Swedish physiologist and pharmacologist. 
what role does the neurotransmitter norepinephrine have in the cardiac system It increases heart rate and blood pressure what is norepinephrine? It is an organic chemical in the catecholamine family that functions in the brain and body as a hormone and neurotransmitter. what kind of a structure does this organ have? Its structure differs from that of epinephrine only in that epinephrine has a methyl group attached to its nitrogen, whereas the methyl group is replaced by a hydrogen atom in norepinephrine. does it affect our sleep? Can cause sleeplessness does that chemical have any affects on our skin? It activates the afferent sensory neuron does it go through degradation? Yes, in mammals, norepinephrine is rapidly degraded to various metabolites. did anyone discover this? Ulf von Euler
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Ulf von Euler [SEP] Introduction
Ulf Svante von Euler (7 February 1905 – 9 March 1983) was a Swedish physiologist and pharmacologist. He shared the Nobel Prize in Physiology or Medicine in 1970 for his work on neurotransmitters.