| | Definition: | | An internal fluid-filled body cavity within an organism other than the gut which lies between the gut (derived from the endoderm) and the muscles (derived from the mesoderm) of the outer body wall (derived from the ectoderm). It may contain other organs besides the gut. It is derived from the blastocoel during embryonic development. It is found in triploblastic animals called pseudocoelomates. |
Biology Dictionary