excretion

excretion

1. kidneys

   • make and excrete urine.

2. lungs

   • excrete carbon dioxide and water vapour.

3. skin

   • excretes salts and water which is called sweat.

4. urinary system

   • The way urine is removed from the body
   • Renal Arteries
     • Bring blood from the heart to the kidneys
   • Renal Veins
     • Take blood from the kidneys to the heart
   • Ureter
     • The tube that links the kidney to the bladder
   • Bladder
     • Stores urine until it is released out of the body
   • Uretra
     • Takes urine out of the body