PATHOLOGY

Detailed explanation-1: -Epinephrine is part of your sympathetic nervous system, which is part of your body’s emergency response system to danger-the “fight-or-flight” response. Medically, the flight-or-flight response is known as the acute stress response. Epinephrine is also called a catecholamine, as are norepinephrine and dopamine.

Detailed explanation-2: -Epinephrine is an endogenous direct adrenergic agonist of the sympathetic nervous system secreted by the adrenal medulla.

Detailed explanation-3: -Norepinephrine gets released by postganglionic neurons of the sympathetic nervous system, which binds to and activates adrenergic receptors.