- abdominal sac
- the part of the embryonic coelom that develops into the abdominal cavity.
Medical dictionary. 2011.
abdominal sac
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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
