norepinephrine (ne) [noradrenaline (na)] molecule in the blood flow - closeup view 3d

norepinephrine noradrenaline catecholamine hormone neurotransmitter neuromodulator antidepressants beta blockers antipsychotics brain stress danger fight flight response arousal alertness vigilance memory focuses attention restlessness anxiety nervous neuron adrenal glands chemical messenger serotonin muscle cell synapse mind nucleus gastrointestinal spinal cord abdomen adrenergic receptors nuclei merkel cells stimulants agonists dopamine methylphenidate reuptake inhibitors amphetamine vasopressor hypotension vasoconstriction locus coeruleus pons sympathetic ganglia stimulant class