Lexic.us

Definition of Air bladder

1. Noun. An air-filled sac near the spinal column in many fishes that helps maintain buoyancy.

Definition of Air bladder

1. Noun. An internal organ that fish use to control their buoyancy, allowing them to maintain or change depth by changing their density. ¹

¹ Source: wiktionary.com

Medical Definition of Air bladder

1. 1. An air sac, sometimes double or variously lobed, in the visceral cavity of many fishes. It originates in the same way as the lungs of air-breathing vertebrates, and in the adult may retain a tubular connection with the pharynx or oesophagus. 2. A sac or bladder full of air in an animal or plant; also an air hole in a casting. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Air Bladder

Literary usage of Air bladder

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Text-book of Zoology by Thomas Jeffery Parker, William Aitcheson Haswell (1921)
"causing greater or less compression of the gases in the air-bladder, ... Horizontal section of posterior portion of head and anterior end of air-bladder in ..."

2. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1894)
"Note on the Production of Sounds by the Air-bladder of certain Siluroid Fishes." By Professors TW BRIDGE and AC HADDON. Communicated by Professor A. ..."

3. A Guide to the Study of Fishes by David Starr Jordan (1905)
"outgrowth from the fore part of the alimentary tract, the only difference being that the air-bladder usually rises dorsally and the lung ventrally. ..."

4. Science by American Association for the Advancement of Science (1905)
"undulatus) as an example of fishes in which ' the air-bladder, without possessing special muscles of its own, may, nevertheless, be partially invested by ..."

5. Elements of Comparative Anatomy by Carl Gegenbaur (1878)
"In Acipenser the opening is placed very far back, and the air-bladder is connected with ... In Amia, also, the cellular air-bladder is divided by a fold, ..."

6. Animal and Vegetable Physiology: Considered with Reference to Natural Theology by Peter Mark Roget (1836)
"... has been placed immediately under the spine, in the middle of the back, and above the centre of gravity. This is known by the name of the air-bladder, ..."

7. The Gentleman's Magazine (1880)
"In the Ganoid fishes, the air-bladder presents us with varying forms. In all, it communicates with the throat or stomach by a tube or duct, ..."

8. A History of the Earth, and Animated Natureby Oliver Goldsmith, Washington Irving by Oliver Goldsmith, Washington Irving (1854)
"The use universally assigned to the air-bladder is the enabling the fish to rise or sink in the ... The air-bladder is described as a bag filled with air, ..."

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