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


Relating to the mesoderm.
Medical Dictionary for the Health Professions and Nursing © 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 ?
Straino et al., "Nitric oxide determines mesodermic differentiation of mouse embryonic stem cells by activating class IIa histone deacetylases: potential therapeutic implications in a mouse model of hindlimb ischemia," Stem Cells, vol.
It consists of five paired mesodermic arches, each separated by an endodermal pouch and an ectodermal cleft.
These phenomena resemble the morphogenetic movement of embryo development, as it follows similar tissue invasive mechanisms through cellular movement and is tailored upon a mesenchymal matrix of mesodermic derived cells ["fluid mesoderm" according to Mechtnikoff (1893)].