Encyclopedia > Bladder

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Bladder

A bladder is a pouch or other flexible enclosure with waterproof or gasproof walls.

In the context of animals and anatomy, "bladder" usually refers to the urinary bladder, but the term is generic, i.e. gallbladder.

Zeppelins are kept buoyant by gas bladders, for example, as are many species of kelp.



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