abdominal air sac


abdominal air sac
배공기주머니

English-Korean animal medical dictionary. 2013.

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  • air sac — n ALVEOLUS (b) * * * 1. in birds, one of the air filled cavities connected with the air passages of the lungs and usually with cavities in the bones; they assist in respiration and lower the body s specific gravity. Domestic fowl have one or two… …   Medical dictionary

  • air sac — gas bladder, a thin membranous, sometimes alveolated sac in the dorsal portion of the abdominal cavity. Contains a varying mixture of gases, not identical to the composition of air. May be one, two or three chambered. May be connected to the gut… …   Dictionary of ichthyology

  • sac — 1. A pouch or bursa. SYN: saccus [TA]. SEE ALSO: sacculus. 2. An encysted abscess at the root of a tooth. 3. The capsule of a tumor, or envelope of a cyst. [L. saccus, a …   Medical dictionary

  • Sac aerien (oiseau) — Sac aérien (oiseau) Système respiratoire du pigeon 1 Humérus creux . 2 Sac aérien interclaviculaire. 3 Trachée. 4 Sacs aériens thoraciques. 5 Sacs aériens abdominaux. 6 Poumons …   Wikipédia en Français

  • Sac aérien (oiseau) — Système respiratoire du pigeon 1 Humérus creux . 2 Sac aérien interclaviculaire. 3 Trachée. 4 Sacs aériens thoraciques. 5 Sacs aériens abdominaux. 6 Poumons …   Wikipédia en Français

  • air bladder — gas bladder, the preferable term since the composition of gases may not be identical to that of air (a thin membranous, sometimes alveolated sac in the dorsal portion of the abdominal cavity. Composed of three layers, the tunica externa, the… …   Dictionary of ichthyology

  • Physiology of dinosaurs — Note: In this article dinosaur means non avian dinosaur, since most experts regard birds as an advanced group of dinosaurs. The physiology of dinosaurs has historically been a controversial subject, particularly thermoregulation. Recently, many… …   Wikipedia

  • Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

  • Massospondylus — Opisthokonta Massospondylus Temporal range: Early Jurassic, 200–183 Ma …   Wikipedia

  • Majungasaurus — Eumetazoa Majungasaurus Temporal range: Late Cretaceous, 70–65.5 Ma …   Wikipedia

  • Insect morphology — Legend of body parts Tagmata : A Head, B Thorax, C Abdomen. 1. antenna 2. ocelli (lower) 3. ocelli (upper) 4. compound eye 5. brain (cerebral ganglia) 6. prothorax …   Wikipedia