The excretory system
Our body produces waste substances which go into the blood, and can be dangerous. EXCRETION
is the elimination of these waste substances.
- The KIDNEYS are the organs of the EXCRETORY SYSTEM. These two organs filter the blood and produce URINE.
This is made up of water (95%) and waste substances (5%).
The urine leaves the kidneys and passes through the URETERS, two tubes which go to the BLADDER.
The urine accumulates there until is expelled through the urethra.
- The SWEAT GLANDS in the skin also help in excretion. They make sweat.
Our body produces waste substances which go into the blood, and can be dangerous. EXCRETION
is the elimination of these waste substances.
- The KIDNEYS are the organs of the EXCRETORY SYSTEM. These two organs filter the blood and produce URINE.
This is made up of water (95%) and waste substances (5%).
The urine leaves the kidneys and passes through the URETERS, two tubes which go to the BLADDER.
The urine accumulates there until is expelled through the urethra.
- The SWEAT GLANDS in the skin also help in excretion. They make sweat.
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