Urinary System. Exercises 40 and 41. Organs of the Urinary System. 2 kidneys Urinary bladder 2 ureters Urethra Primary function is to filter blood, and reabsorb water and needed substances back into blood. Remaining water and wastes are removed in urine.
Exercises 40 and 41
Functional unit of kidney
Number constant from birth
Can function on 2/3 of one kidney
Forms the urine
(afferent arteriole diameter > efferent arteriole)