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| - Norepinephrine or noradrenaline is a catecholamine that in the human body acts as a hormone and neurotransmitter. As a neurotransmitter, it has a critical role in the regulation of the heart rate. As a hormone, it complements adrenaline. affecting the amygdala, increasing heart rate, triggering the release of glucose into the bloodstream and increasing blood flow into skeletal muscles. As a pharmaceutical, norepinephrine is used to raise blood pressure,
- Norepinephrine (abbreviated norep) or noradrenaline was a hormone and neurotransmitter in the humanoid central nervous system. As a stress hormone, it affected the part of the brain that controled alertness as well as the fight-or-flight response. Along with epinephrine or adrenaline, it increased heart rate and blood pressure, thus increasing blood flow to muscles in addition to triggering the release of glucose from the body's energy stores. (TNG: "Skin of Evil" , "Who Watches The Watchers" )
- Norepinephrine (INN) or noradrenaline (BAN) is a catecholamine and a phenethylamine with chemical formula C8H11NO3. The natural stereoisomer is L-(−)-(R)-norepinephrine. It is released from the medulla of the adrenal glands as a hormone into the blood, but it is also a neurotransmitter in the nervous system where it is released from noradrenergic neurons during synaptic transmission. As a stress hormone, it affects parts of the human brain where attention and impulsivity are controlled. Along with epinephrine, this compound affects the fight-or-flight response, activating the sympathetic nervous system to directly increase heart rate, release energy from fat, and increase muscle readiness.
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| abstract
| - Norepinephrine or noradrenaline is a catecholamine that in the human body acts as a hormone and neurotransmitter. As a neurotransmitter, it has a critical role in the regulation of the heart rate. As a hormone, it complements adrenaline. affecting the amygdala, increasing heart rate, triggering the release of glucose into the bloodstream and increasing blood flow into skeletal muscles. As a pharmaceutical, norepinephrine is used to raise blood pressure,
- Norepinephrine (abbreviated norep) or noradrenaline was a hormone and neurotransmitter in the humanoid central nervous system. As a stress hormone, it affected the part of the brain that controled alertness as well as the fight-or-flight response. Along with epinephrine or adrenaline, it increased heart rate and blood pressure, thus increasing blood flow to muscles in addition to triggering the release of glucose from the body's energy stores. (TNG: "Skin of Evil" , "Who Watches The Watchers" ) In 2372, The Doctor found elevated levels of norepinephrine in Lon Suder, which suggested increased aggressive tendencies. However, he also noted that Suder's levels were not significantly different from any of the other former Maquis crew. (VOY: "Meld") The Clown, a manifestation of fear in Viorsa's virtual reality stasis system, metaphorically chopped his victims' heads off by raising the amount of norepinephrine in their bodies to such extreme levels that they suffered massive heart attacks and died. (VOY: "The Thaw") In 2375, when Sarina Douglas began responding to Doctor Julian Bashir's treatment for her catalepsy, he discovered that her norephinephrine levels were a little high, which Douglas herself explained was because of limbic overcompensation for the new thalamic connections. (DS9: "Chrysalis") In 2376, The Doctor found that Neelix's norepinephrine levels were three times what they should have been, after his exposure to neurogenic pulses from the Tarakis memorial monument. (VOY: "Memorial")
- Norepinephrine (INN) or noradrenaline (BAN) is a catecholamine and a phenethylamine with chemical formula C8H11NO3. The natural stereoisomer is L-(−)-(R)-norepinephrine. It is released from the medulla of the adrenal glands as a hormone into the blood, but it is also a neurotransmitter in the nervous system where it is released from noradrenergic neurons during synaptic transmission. As a stress hormone, it affects parts of the human brain where attention and impulsivity are controlled. Along with epinephrine, this compound affects the fight-or-flight response, activating the sympathetic nervous system to directly increase heart rate, release energy from fat, and increase muscle readiness. The host of physiological changes activated by a stressful event are unleashed in part by activation of a nucleus in the brain stem called the locus ceruleus. This nucleus is the origin of most norepinephrine pathways in the brain. Neurons using norepinephrine as their neurotransmitter project bilaterally from the locus ceruleus along distinct pathways to the cerebral cortex, limbic system, and the spinal cord, among other projections. At synapses it acts on both alpha and beta adrenoreceptors.
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