![]() ![]() ![]() ![]() Moreover, noradrenaline is converted into adrenaline by the action of the enzyme, phenylethanolamine N-methyltransferase (PNMT), which only occurs in the adrenal medulla. – Comparison of Key Differences Key TermsĪdrenaline/Epinephrine, Adrenergic Receptors, Fight-or-Flight Response, Noradrenaline/Norepinephrine, VasoconstrictionĪdrenaline or epinephrine is a type of catecholamine exclusively produced in the medulla of the adrenal gland. What is the Difference Between Adrenaline and Noradrenaline What are the Similarities Between Adrenaline and NoradrenalineĤ. Furthermore, adrenaline is the main factor which increases metabolism in preparing the body to stress or danger while noradrenaline is responsible for the reflexive changes in cardiovascular tone.Īdrenaline and noradrenaline are two types of hormones and neurotransmitters in the body responsible for the regulation of the homeostasis in order to prepare the body for stressful or dangerous situations by mediating the fight-or-flight response. The main difference between adrenaline and noradrenaline is that adrenaline/epinephrine is the main hormone secreted by the adrenal medulla whereas noradrenaline/norepinephrine is the main neurotransmitter in the sympathetic nervous system. ![]()
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