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RENIN-ANGIOTENSIN-ALDOSTERONE REFLEX by Professor Fink.wmv

In this lecture, Professor Fink describes the Renin-Angiotensin-Aldosterone homeostatic reflex, including its function [Regulation of Blood Volume/Blood Pressure & the circulating Na+ & K+ electrolyte levels], its mechanism, and its actions. Reference is made to the Juxtaglomerular (J-G) Cells, angiotensinogen, Angiotensin 1, Angiotensin Converting Enzyme (ACE), and Angiotensin 2. Professor Fink compares and contrasts Aldosterone with Antidiuretic Hormone (ADH). Professor Fink then describes the clinical conditions of Hypoaldosteronism and Hyperaldosteronism, making reference to hyperkalemia, hypokalemia, circulatory shock, hypovolemia, hypervolemia, and Renal Hypertension. Professor Fink ends the lecture by describing the use of Aldosterone Blockers (spironolactone; Aldactone), Angiotensin 2 Blockers (losartan; Cozaar), and ACE Inhibitors (lisinopril; Zestril) in the management of Renal Hypertension. Check-out professor fink's web-site or additional resources in Biology, Anatomy, Physiology & Pharmacology: www.professorfink.com Down-loadable e-books of the Lecture Outlines by Professor Fink (as well as "hard copy" versions) can be purchased from the WLAC Bookstore at: http://onlinestore.wlac.edu/fink.asp