urinary Web - The Urinary System eliminates waste . . ....

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Unformatted text preview: The Urinary System eliminates waste . . . Some waste products of urine = Nitrogenous wastes (from protein breakdown) Extra electrolytes Certain toxins and drugs . . . to help regulate these very important things: Water balance Electrolytes Acid-base balance in the blood Blood pressure AND, kidneys also Manage RBC production (erythropoietin) Activate vitamin D DIGESTIVE SYSTEM RESPIRATORY SYSTEM CARDIOVASCULAR SYSTEM URINARY SYSTEM water, solutes elimination of excess water, salts, wastes Organs of the Urinary System Kidneys primary functional organs! Ureters drain urine to bladder Urinary bladder store urine Urethra drain urine from body These are really just fancy plumbing Kidneys are fairly well protected Figure 15.1b Located against dorsal body wall Protected (somewhat) by lower ribs Anchored and protected (with fat) by 3 surrounding membranes Kidney Features Renal hilum indentation where ureters and blood vessels enter/exit kidney Adrenal glands on top Regions of the Kidney Figure 15.2b Renal cortex outer region Renal medulla inside cortex Medullary pyramids and renal columns Renal pelvis inner collecting tube (moves urine to ureters) Kidneys filter blood, i.e. control plasma composition 1/4 th of blood supply passes through kidneys per minute! Renal artery = arterial blood supply (to be filtered) Renal vein = filtered blood drainage Filtration occurs across capillaries = glomerulus in between Nephron = functional unit of kidney, i.e. actual site of urine formationfunctional unit of kidney, i....
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This note was uploaded on 01/13/2012 for the course ANATOMY 10 taught by Professor Prestongalusky during the Fall '11 term at Riverside Community College.

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urinary Web - The Urinary System eliminates waste . . ....

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