Sympathetic NS - Ripped From Txibarra: NSC 330 Chapt 13 Powerpoint What are acetycholine, norepinephrine and epinephrine - ANS-neurotransmitters What are the two groups of adrenergic agonists called - ANS-catecholamine and Non-catecholamine Adrenergic agonists drus that have a short duration, cannot be given orally and do not cross the blood brain barrier are known as what? - ANS-catecholmines Adrenergic agonists drus that have a long duration, canbe given orally and do cross the blood brain barrier are known as what? - ANS-non-catecholamines catecholamine - ANS-any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland; neurotransmitters that increase cardiac output, constrict peripheral blood vessels, increase blood pressure, and cause bronchodilation in response to stress. non-catecholamines - ANS-Delivered orally or parenterally. Longer duration, can penetrate the blood brain barrier because they are less polar than catecholamines. Only MAO enzymes break them down. They have a longer half life than catecholamines. - Ephedrine: A1, A2, B1, B2 - Phenylephedrine: A1 - Terbutaline: B2 epinephrine - ANS-A catecholamine that, when secreted as a hormone by the adrenal medulla, mediates "fight-or-flight" responses to short-term stresses; also released by some neurons as a neurotransmitter; also known