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serosa

Pronunciation: se-ro'sa

Definition:

  1. The outermost coat or serous layer of a visceral structure that lies in the body cavities of the abdomen or thorax; it consists of a surface layer of mesothelium reinforced by irregular fibroelastic connective tissue.
  2. The outermost of the extraembryonic membranes that encloses the embryo and all its other membranes; it consists of somatopleure, ectoderm reinforced by somatic mesoderm; the serosa of mammalian embryos is frequently called the trophoderm.

Synonym(s): membrana serosa2

[fem. of Mod. L. serosus, serous]

See Also: chorion

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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