Water in Your Body
Can you think of all the ways your body uses water?
- The kidneys manage water in the body and filter wastes out of the blood.
- Wastes are mixed with water for form urine. Urine drains out of the kidneys and collects in the bladder until you get rid of it.
- Water is in every tiny cell in your body. The spaces between cells contain water too!
- Your blood is also mostly water.
- Water vapor goes in and out of your nose. Most water goes in your mouth.
- Water is in the saliva that mixes with food when you chew.
- Food and water end up in the stomach, a powerful mixing machine.
- The liver manages most nutrients that come from the small intestine.
- From the stomach, mixed food and water go into the small intestine. Here, food is broken up into small molecules that can enter the bloodstream.
- Water, minerals, and some vitamins are taken up in the large intestine. Food that isn't digested collects here too.
- Water is also in perspiration and in tears.
- When you sweat, your body is losing water. Don't forget to drink water, especially when it's hot!
My Health My World Explorations for Children and Adults are publications of the Center for Educational Outreach at Baylor College of Medicine, made possible by a grant from the National Institute of Environmental Health Sciences. For more information, contact Center for Educational Outreach, Baylor College of Medicine, Houston, TX.
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