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urinary system 2402
urinary organs
| Question | Answer |
|---|---|
| kidney | beanshaped structure filters 1,500 liters in one day |
| Ureter | tube where urine leaves kidney |
| Hilus | ring around ureter where veins and arteries attach |
| renal pelvis | two or three major calyces combine to form the |
| major calyx | four or five minor calyces merge to form |
| minor calyx | ducts within each renal papilla discharge urine into a cup shaped drain called |
| medulla | consists of 6 to 18 distinct conical or triangular structures called renal pyramids |
| renal pyramid | pyramid shaped structures in the medulla |
| renal papilla | tip of the renal pyramid that faces the cortex flows into the minor calyx |
| cortex | outer part contains the nephrons |
| renal capsul | fiberous outer surface of the kidney |
| renal artery | each kidney recieves blood from |
| renal veins | out going blood travels through |
| nephron | individual filetering system being caple of forming urine |
| efferent arteriole | blood artery leaving the glomerulus |
| afferent arteriole | blood artery entering the glomerulus |
| golmerlulus | 50 intrertwining capillaries(blood vessels) that projects into the bowmans capsule |
| bowman's capsul | the covering around the glomerulus |
| renal corpuscle | is both the glomerus & bowmans capsul |
| proximal tubule | the first segement of the renal tubule (water and protein are absorbed here) |
| loop of henle | the proximal convoluted tubule leads to the (it also absorbs water & salt) |
| descending limb | fluid travels toward the renal pelvis |
| ascending limb | fluid travels toward the renal cortex |
| distal tubule | (water absorbtion) after the ascending limb comes |
| the collecting system | consists of collecting duct, papilliary duct, minor then major calyx,ureter |
| collecting ducts | individual nephrons drain here |
| papillary duct | several collecting ducts converge to empty into a larger |
| minor then major calyx | the papillary duct empties into |
| ureter | minor and major calyx empties into |
| bladder | storage of urine which holds about 1l of fluid |
| umbilical ligaments | remenents of blood vessels in embilical cord. it suspends the bladder in place |
| rugae | ridges inside bladder |
| ureteral openings | ureters enter the bladder |
| urethra | exits the bladder and carries filtrates away |
| prostate gland | (sexual function) encloses the urethra. must be checked by age 50 by a physcian |
| internal urethral spincter | inside bladder at the beginning of the urethra |
| external urethral spincter | at the exits of the urethra |
| diuresis | simply urianation final discharge of filterate |
Created by:
smike
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