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Physiology
Answer: 2) Vasoconstriction in most vessels
Explanation: Norepinephrine acts on alpha-adrenergic receptors in the vascular smooth muscles, causing vasoconstriction in most blood vessels. This diverts blood flow to critical organs like the bra
General Medicine
Angiotensinogen is converted to angiotensin II by the action of renin and angiotensin-converting enzyme (ACE). Angiotensin II is a potent vasoconstrictor and stimulates the release of aldosterone from the adrenal cortex, leading to sodium and wate
Physiology
Vitamin E deficiency can lead to decreased fluidity of cell membranes, making them less flexible and more prone to damage.