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How does the Excretory System work?
How does the Excretory System work?
The Excretory System take the extra water, undigested food and food waste and he expelled out of our bodies.
How our Bodies Remove Solid Waste.
How our Bodies Remove Solid Waste.
1.Undigested food and food waste pass through the small intestine. At this stage the food contain a lot of water.
2. In the large intestine most of the water is absorbed back into the body. Solid waste remains form into solid lumps called faeces.They pass into the rectum.
3. Finally, the feaces are expelled throught the anus.
How our Bodies Remove Liquid Waste.
How our Bodies Remove Liquid Waste.
1.The blood travels around the body and when pass throught the kidneys,The kidneys filter the bloood and remove extra water and waste. It form a liquid called urine.
2. The urine stop in the bladder, and there it is stored.
3. Finally, it's expelled throught the urethra.
Exaling and Sweating.
Exaling and Sweating.
The Sweat is made up of the waste and salts that are stored in our sweat glands. We sweat and the waste is expelled throught the pores.
When we exhale, we also expel waste substance.
Our blood absorb nutrients and oxygen. As a result, they produce wastes subtances. The blood carry the waste subtance tothe lungs and they're expelled when we exhale.
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