Elimination Flashcards
kidneys
where urine is produced
ureters
where urine travels
bladder
urine reservoir
urethra
where urine is excreted
function of kidneys
- maintain composition and volume of fluids
- filter and excrete blood constituents not needed
- retains those that are needed
function or urethra
excretes waste products (urine)
nephron function
maintain and regulate fluid balance through the mechanisms of selective reabsorption and secretion of water, electrolytes, and other substances
bladder muscle layers is named:
detrusor muscle
enuresis
involuntary passing of urine when control should be established (approx. 5 years)
nocturnal enuresis
bedwetting - involuntary passing of urine during sleep
autonomic bladder
no control, reflex only (disease or injury)
polyuria (diuresis)
production of abnormally large amounts of urine, several liters more than normal
oliguria
low urine output, usually less than 500ml a day or 30ml/hr
anuria
lack of urine production
normal urination
in 8hr pt. should void 2400ml of urine