Ectomesenchyme
Also found in: Dictionary, Thesaurus, Medical.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
Ectomesenchyme
part of the embryonic connective tissue (mesenchyme) of most multicellular animals and humans. The ectomesenchyme consists of cells of the ectoderm. Almost the entire visceral skeleton, including auditory ossicles and branchial arches, as well as pigment cells and the connective tissue layer of skin, all develop from the ectomesenchyme.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.