excretory system Flashcards
what organs contribute to excretion
skin, lungs and kidneys
how to lungs contribute
remove carbon dioxide
when is carbon dioxide made
cellular oxidation
which metabolic wastes are toxic
urea, ammonia
how do the kidneys maintain homeostasis
adjusting the salt and water content of urine
how do the kidneys maintain blood volume
by regulating the amount of water excreted
how do the kidneys monitor blood composition
by regulating electrolyte secretion (sodium)
how do the kidneys monitor blood pH
regulating the excretion of ions (hydrogen)
what enzyme do the kidneys secrete that helps with blood pressure
renin
what growth factor do kidneys secrete that stimulates red blood cell production
erythropoietin
outermost region of kidney
renal cortex
inner portion of kidney, triangle shaped
Renal Medulla
funnel-shaped structure in center of kidney
Renal Pelvis
Where is urine collected in kidneys
Renal Pelvis
NH3 is what
ammonia