air bladder

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Related to Gas bladder: Fish maw, air bladder
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  • noun

Synonyms for air bladder

an air-filled sac near the spinal column in many fishes that helps maintain buoyancy

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References in periodicals archive ?
Subsequent chapters cover various body parts and systems, including the skeletal and muscular tissues, the cardiovascular system, swim and gas bladders, and endocrine glands.
Modern lungfish and certain fish with gas bladders are well known for their ability to breathe air, but the sculpin and toadfish apparently use the tissue in their gills or mouths to respire, according to Martin.
Many tropical fish can breathe air through modified gas bladders, analogous to a lung, with air being taken through an opening in their throat.