Bladder Facts: Lesson for Kids

Instructor: Rebecca Gillaspy

Dr. Gillaspy has taught health science at University of Phoenix and Ashford University and has a degree from Palmer College of Chiropractic.

Did you ever have to pee really bad? Your bladder stores urine, or pee, until you can find a bathroom. It grows as it fills, but it can only hold so much. Learn about the bladder and how to figure out how much pee your bladder can hold.

What is the Bladder?

Do you own a puppy or think it would be fun to have a puppy living in your house? Puppies are cute, but they are also a lot of work, especially if they aren't housebroken. When a puppy is housebroken, it can wait to go pee until it gets outside. Before then, it doesn't understand how to hold the pee in its bladder, so it goes potty wherever it wants, even if that place is your bedroom floor!

The bladder is an organ that holds urine, or pee, until it's time to go to the bathroom. Just like a puppy, you have a bladder inside of you. Of course, you don't get housebroken, but you did use diapers when you were little until you learned how to use a toilet.

urinary

The bladder is part of the urinary system. Do you see the word urine hiding in this term? You can use that hidden word to remember that the urinary system is the system in your body that makes urine. The urinary system is made up of the kidneys, ureters, bladder, and urethra.

Your kidneys, which are organs found on the sides of your back, make urine by removing water and wastes from your blood. The ureters carry the urine from the kidneys to the bladder, where it's stored until you find a bathroom and expel the urine through the urethra.

How Does the Bladder Work?

The bladder is located in your pelvis, which is the part of your body that your legs attach to. Think of your bladder as a water balloon with three holes.

The bladder is lined with a special tissue (transitional epithelium) that makes it waterproof, and the walls contain smooth muscle, which is a type of muscle your body controls for you. The walls can stretch as the bladder fills with urine, much like a water balloon filling with water. When the bladder is full, a signal gets sent to your brain that tells you to get to a bathroom soon.

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