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41.5A: אפינפרין ונוראפינפרין - ביולוגיה

Epinephrine and norepinephrine are released during the flight/fight response, causing vasoconstriction of blood vessels in the kidney.Learning ObjectivesDescribe hormonal control by epinephrine and norepinephrine of osmoregulatory functionsKey PointsEpinephrine, produced by the adrenal medulla, causes either smooth muscle relaxation in the airways or contraction of the smooth muscle in arterioles, which results in blood vessel constriction in the kidneys, decreasing or inhibiting blood flow to the nephrons.
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