NURS 220 Lecture Notes - Lecture 21: Baroreflex, Hemodynamics, Aldosterone
Document Summary
Overview: most important function of cvs is exchange across capillary walls therefore are interested in how is blood flow maintained in capillaries: Derived the equation for map (the driving force for the above local blood flow) from: a. bulk flow equation for entire system. Co= hr x sv: map= hr x sv x tpr. Section on reflex control of map gave 3 negative feedback reflex control system which regulate map: sympathethetic baroreceptor reflex, renin, angiotensin, aldosterone reflex, adh reflex. Section on movement of water across capillary walls used the starling landis equation to identify forces affecting distribution of water between the plasma and the interstitium. Nm = (hpc hpi ) -- (copc copi: forces that affect normal distribution were described, how these forces can be changed was described, how water can be pulled from the interstitium into capillaries to reestablish.
