coelom /coe·lom/ (se´lom) body cavity, especially the cavity in the mammalian embryo between the somatopleure and splanchnopleure, which is both intra- and extraembryonic; the principal cavities of the trunk arise from the intraembryonic portion.coelom´ic
coelom
coe·lom or ce·lom or coe·lome (s  l m)n. The cavity formed by the splitting of the embryonic mesoderm into two layers; in mammals it then forms into the peritoneal, pleural, and pericardial cavities. |
coelom
[sē′ləm]
Etymology: Gk, koilos, hollow
the body cavity of the developing embryo. It is situated between the layers of lateral mesoderm and in mammals gives rise to the pericardial, pleural, and peritoneal cavities. A kind of coelom is extraembryonic coelom. Also called somatic cavity. celomic, coelomic, adj.
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