air bladder(redirected from air bladders)
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a gas-filled sac that is present in most fish and functions as a hydrostatic organ; it is located beneath the vertebral column primarily in the anterior abdomen and is connected with the esophagus in some species (for example, goldfish). Oxygen is transferred from a rich venous sinus into the swim bladder to increase buoyancy.
Synonym(s): swim bladder
Farlex Partner Medical Dictionary © Farlex 2012
1. See swim bladder.
2. See float.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.