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Mod 2 Ch. 31
Ch. 31 Urinary System
| Term | Definition |
|---|---|
| ureter | connects kidneys to bladder |
| 3 functions of the kidneys | 1. Filtration 2. Reabsorbtion 3. Secretion |
| Filtration | -work done by the nephron on the blood -water, wastes, and other substances form filtrate |
| Reabsorbtion | -occurs in the network of tubules within the kidneys -99% of water is reabsorbed and returned to bloodstream -good material is reabsorbed back into the body |
| Secretion | -waste products from filtrate are mixed with water to make urine -urine is secreted from tubules into calyx, then into the renal pelvis -from there it goes into the ureters, stored in the bladder, and then emptied through the urethra out of the body |
| renal pelvis | located at the top portion of the ureter |
| nephron | -functional unit of kidney -1 million / kidney -Bowman's capsule (glomerular) and glomurulus |
| glomerulonephritis | -aka glomerular disease -inflammation of the kidneys that primarily affects glomeruli |
| bladder | -can store 16 oz / 500 mL of Urine |
| physical characteristics of urine | -clear, not cloudy -straw colored -mildly aromatic odor -slightly acidic pH of 6 |
| hilum | -located on the curved-in portion of the kidney -contains the calyx and renal pelvis |
| anuria | absence of urination |
| oliguria | scanty or little urination |
| polyuria | excessive urination |
| cystitis | inflammation of bladder |
| dysuria | painful, burning, or difficult urination |
| incontinence | lack of urinary control -stress -overactive bladder -urge -overflow -enursis (while sleeping) -transient |
| renal calculi | kidney stones which cause obstructive disorder of the kidney |
| lithotripsy | shock waves used to break up stones (renal calculi) in the body |
| renal colic | pain that's caused by kidney stones |
| ESRP | -End-stage renal disease -qualifies for Medicare -last stage of kidney failure |
| dietary restrictions for those prone to kidney stones | control intake of foods containing calcium and oxalate |
| calcium-containing foods | dairy, leafy, dark green vegetables, almonds, and sardines |
| oxalate-containing foods | beets, chocolate, tea, coffee, cola, nuts, rhubarb, strawberries, wheat bran, |
| renal medulla | inner layer of kidney |
| renal cortex | outer layer of kidney |
| papilla open into this structure | renal calyx |
| Inside a nephron is the renal corpuscle which contains: | -Bowman's capsule -glomerulus |
| urethra | tube that carries urine from the body |
| nocturia | urination at nite |
| nephritis | kidney infection |
| bacteria | causes a UTI |
| micturition | urination |
| 500 mL | how much urine a bladder can hold |
Created by:
vanstellee
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