BIO2A03-2011-L14 - BIO 2A03 Lecture 14 Circulation VII...

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BIO 2A03 Lecture 14 Circulation VII & Renal I
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Figure 15.27    Efferent    pathways of the  Baroreceptor Reflex
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Figure 12.59 Baroreceptor reflexes Baroreceptor reflexes also facilitate a short term partial restoration of blood plasma volume by reabsorption of fluid from interstitial space and lymph Long-term reg. of MAP Kidney    
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Blood plasma   volume • All  ions   (e.g Na + , Cl - , HCO 3 - , K + , Ca 2+ , Mg 2+ ,SO 4 = ) Acid-base     status (pH of the body fluids) Excretion of all  metabolic wastes    - urea, uric acid, ammonia Excretion of all   foreign    substances Retention  of all valuable substances Red blood cell levels - via “EPO” Production of the   renal hormones Gluconeogenesis  from amino acids during fasting Kidney Function = Renal System Regulates:
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Kidney   Ureter       Wave-like contractions of smooth muscle Bladder Smooth muscle with gap  junction Urethra THE URINARY SYSTEM Fig 19-1
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