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UA/Micro - Chapter 15

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Term
Definition
kidney   bean shaped organ located on either side of veterbral column at the back of the abdominal cavity - removes waste products from blood, produce and eliminate urine  
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ureter   muscular tube lined with mucus membranes that run from each kidney to the bladder  
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urninary bladder   hollow muscular sac located in the pelvic cavity that serves as a temporary reservoir for urine  
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urethra   mucus membrane lined tube that leads from the bladder to the exterior of the body  
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meatus   external opening of the urethrac  
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calyx   cup-shaped division of the renal pelvis through which urine passes from the renal tubules  
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glomerulus   ball shaped collection of very thin coiled and intertwined capillaries  
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Bowman's capsule   double walled cup-shaped end of a renal tubule containing a glomerulus aka renal capsule/glomerural capsule  
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urination   act of eliminating urine from the body  
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voiding   act of eliminating urine from the body  
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micturition   act of eliminating urine from the body  
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BUN   bladder, urea, nitrogen  
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cystoscope   instrument to view the interior of the bladder  
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nephron   functional unit of the kidney - forms urine by process filtration, reabsorption and elimination  
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dysuria   painful unrination  
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pyelonephritis   bacterial infection (inflammation) of the renal pelvis  
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nocturia   excessive urination at night - wake up to have to pee  
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enuresis   urinary incontinence at night - bed wetting  
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urinary retention   abnormal involuntary accumulation of urine in the bladder - inability to empty the bladder  
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urinary incontinence   inability to control urination or retain urine in the bladder  
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hemodialysis   process of removing excess fluids and toxins the blood by shunting (in the arm) the patients blood from the body into a dialysis machine  
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peritoneal dialysis   tube inserted into the peritoneal membrane to filter and cleanse the blood of waste products - using one's one body rather than a machine  
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cystitis   inflammation of the bladder  
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albuminuria   large quantities of protein in the urine (same as proteinuria)  
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proteinuria   large quantities of protein in the urine (same as albuminuria)  
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pyuria   presence of white blood cells in the urine - pus in the urine  
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bacteriuria   presence of bacteria in the urine  
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filtration   takes place in the nephron - involves glomerulus and Bowman's capsule - removal of toxins  
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reabsorption   takes place in the nephron - after filtration water, sugar and salts are returned to the bloodstream  
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oliguria   scanty urine output  
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nephrolithiasis   kidney stones aka renal calculus  
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renal artery   supplies blood to the kidneys  
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renal vein   carries blood away from the kidney  
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cortex   outer layer of a body organ or structure - outer layer of kidney  
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medulla   most internal part of an organ - inner layer of the kidney  
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renal pelvis   central collecting part of the kidney that narrows into the ureter  
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