The Pathophysiology of Hypertension
Автор: Interactive Biology
Загружено: 2013-12-09
Просмотров: 243769
http://www.interactive-biology.com - What are the mechanisms that underly the development of hypertension? How is the sympathetic nervous system involved? What does the Renin-angiotensin system have to do with anything. Watch and Learn.
00:00 Intro
00:10 Cardiac Output
00:23 Cardiac output = Heart Rate x Stroke Volume
00:38 Sample calculation: Cardiac Output
00:55 Blood pressure = Cardiac Output (CO) x Peripheral Resistance (PR)
01:15 Peripheral Resistance (PR)
02:00 Increased Arteriolar Vasoconstriction: Main cause of Increased PR
04:00 Renin - Angiotensin System
05:00 Release of angiotensinogen: Increased PR
06:39 Release of aldosterone: Increased CO
08:20 Increased PR and/or CO results in Increased BP
09:02 Effect of continually Increasing BP
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