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Vocabulary Term Details

Swim bladder

Definition (

The swim bladderis an internal gas-filled organ that contributes to the ability of a fish to control its buoyancy, and thus to stay at the current water depth without having to waste energy in swimming. The swim bladder is also of use as a stabilizing agent because in the upright position the center of mass is below the center of volume due to the dorsal position of the swim bladder. Another function of the swim bladder is the use as a resonating chamber to produce or receive sound. (Wikipedia)

Preferred Units: N/A

Scope Note:

Broader TermsNarrower TermsRelated Terms
Respiratory system
N/AAir sacs

This term is used for the following terms: 
Air bladder
Fish air bladder
Fish maw

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