47 - - Secreting erythropoietin, a hormone that stimulates...

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Sheet1 Page 1 Lectures 24, 25, 26, 27: Renal Physiology Reading: Chapter 14, pgs 501-542 (pgs 511-553, if using the 5th edition) Urinary System - major role is to regulate the volume, electrolyte composition, and pH of the internal environment. (Figure 14- 1 Consists of - pair of kidneys, pair of ureters, urinary bladder, urethra Specific functions - served by the kidneys include: - Maintaining H2O balance in the body - Regulating the quantity and concentration of most extracellular (ECF) fluid ions - Maintaining proper plasma volume - Helping maintain proper acid-base balance of the body - Maintaining the proper osmolarity of body fluids - Excreting the end products of bodily metabolism such as urea and uric acid - Excreting foreign compounds such as drugs, food additives, pesticides
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Unformatted text preview: - Secreting erythropoietin, a hormone that stimulates red blood cell production - Secreting renin, a hormone important in salt conservation by the kidneys - Converting vitamin D into its active form Blood - large quantities of blood enter and leave the kidneys each day (Figure 14-1). Blood enters the kidneys via the renal ar t e The nephron - is the functional unit of the kidney. A functional unit is the smallest unit capable of performing all of the tasks of a Each nephron consists of a vascular component, a tubular component, and a combined vascular and tubular component. (Fig u Vascular component - includes the: Afferent arteriole - brings blood to the glomerulus Glomerulus -tuft of capillaries that filters plasma into the tubular component...
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