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Pertaining to the mesoderm.
Farlex Partner Medical Dictionary © Farlex 2012


(mes'o-derm) [? + derma, skin]
A primary germ layer of the embryo lying between ectoderm and endoderm. From it arise all connective tissues; muscular, skeletal, circulatory, lymphatic, and urogenital systems; and the linings of the body cavities. See: ectoderm; endodermmesodermicmesodermal, adjective

axial mesoderm

Portion of the mesoderm that gives rise to the notochord and prechordal plate.

extraembryonic mesoderm

Mesoderm lying outside the embryo proper and involved in the formation of amnion, chorion, yolk sac, and body stalk.

intermediate mesoderm

Mesoderm lying between somite and lateral mesoderm, and giving rise to embryonic and definitive kidneys and their ducts.

lateral mesoderm

Unsegmented mesoderm lying lateral to the intermediate mesoderm. In it develops a cavity (coelom), separating it into layers (somatic and splanchnic mesoderm).
Synonym: hypomere

paraxial mesoderm

Mesoderm lying immediately lateral to the neural tube and notochord.

somatic mesoderm

The outer layer of the lateral mesoderm. It becomes intimately associated with the ectoderm, forming the somatopleure, from which the ventral and lateral walls of the embryo develop.

splanchnic mesoderm

The inner layer of the lateral mesoderm. It becomes intimately associated with the endoderm, forming the splanchnopleure, from which the gut and the lungs and their coverings arise.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
The hypothesis that the luminal epithelium could originate from mesodermally derived cells has already been discussed in the literature (Bertolini, 1930; Kille, 1935; Dawbin, 1949; Mosher, 1956; Tracey, 1972; Leibson, 1992).
fraudatrix the mesodermally derived coelomic epithelium plays a key role in regeneration of the gut luminal epithelium (normally endodermal in origin).
fraudatrix develop from two different cell sources, namely from the mesodermally derived mesothelium and from the endodermally derived cloacal lining epithelium, respectively.