38.3 Excretory System

what is the most important part of excretory system?

kidneys

what do kidneys do?

filter out waste from blood

where is waste from kidneys temporarily stored?

the urinary bladder

what is the functional unit of kidneys?

nephrons

what artery puts blood into kidneys?

renal artery

what vein takes blood out of kidneys?

renal vein

what takes waste from collecting duct to urinal bladder?

ureter

nephrons can be found between what two parts of kidney?

cortex and medulla

what part of nephrons are in medulla?

the bowman’s capsule

in a nephron, the first part where blood goes is…

bowman’s capsule

what does bowman’s capsule do?

collect fluids from blood for reabsorption

what is inside the bowman’s capsule?

the glomerulus

what is the glomerulus?

clumped together network of capillaries

what does loop of henle do?

makes the urine extra concentrated

what tube expels urine from urinary bladders?

the uretha

what does filtrate usually not contain?

protein, cells, and platelets

what comes after loop of henle?

the collecting duct

what is outer layer of kidneys called?

renal cortex

what is the only part of a nephron in the renal medulla?

loop of hernes