OUR EXCRETORY SYSTEM
HOW OUR BODIES REMOVE SOLID WASTE
1. Undigested food and food waste pass through the SMALL INTESTINE: At this stage, they contain a lot of water
2. In thee LARGE INTESTINE, solid waste that remains solid lumps called FAECES pass into the RECTUM.
3. Finally, the FAECES are expelled through the ANUS.
HOW OUR BODIES REMOVE LIQUID WASTE
1. The KIDNEYS filter our blood, removing extra water and waste, forming a liquid called URINE.
2. The URINE travels to the bladder where it's stored.
3. Finally, it's expelled through the URETHRA.
EXHALING AND SWEATlNG
Our body also removes waste by sweating and exhaling
SWEAT: Waste water + salts: It's expelled through pores in our skin.
EXHALING: Waste water + carbon dioxide: It's expelled when we exhale.