excretory system Flashcards
(8 cards)
What the this system have
kidneys, ureter, bladder and urethra
function
-glomerular filtration, or nitrogenous waste removal.
The system filters the blood from the nitrogenous waste made from protein digestion.
-also maintains tonicity
-secretes hormones
How does this system maintain tonicity
keeps blood and plasma isotonis regardless or water intake
also maintains acid and base balance
nitrogenous waste
-Ammonia, urea and urie acid all contain nitrogen from protein.
Ammonia is very poisonous and is converted to urea and urie acid.
What are the structures that help filter the nitrogenous waste
The kidneys and nephron
kidneys
size of your fist, hiagh pressure blood
nephron
smallest component of the kidneys which filters the blood , 1 million in each kidney