mesogastrium

(redirected from Dorsal mesogastrium)
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mesogastrium

 [mez″o-gas´tre-um]
the portion of the primordial mesentery that encloses the stomach and from which the greater omentum develops. adj., adj mesogas´tric.

mes·o·gas·tri·um

(mez'ō-gas'trē-ŭm),
In the embryo, the mesentery of the dilated portion of the foregut that is the future stomach; it gives rise to the greater omentum and consequently is involved in the formation of the omental bursa. The spleen and body of the pancreas develop within it, and thus the splenorenal and gastrosplenic ligaments are derivatives of the (dorsal) mesogastrium.
[meso- + G. gastēr stomach]

mesogastrium

/meso·gas·tri·um/ (-gas´tre-um) the portion of the primitive mesentery which encloses the stomach and from which the greater omentum develops.mesogas´tric

mesogastrium

(mĕz′ə-găs′trē-əm, mĕs′-)
n. pl. mesogas·tria (-trē-ə)
Either of two mesenteries attached to the embryonic stomach that persist in the form of ligaments and the lesser omentum.

mes′o·gas′tric adj.

mes·o·gas·tri·um

(mez'ō-gas'trē-ŭm)
In the embryo, the mesentery of the dilated portion of the alimentary canal that is the primordium of the stomach; it gives rise to the greater omentum and consequently is involved in the formation of the omental bursa. The spleen and body of the pancreas develop within it, and thus the splenorenal and gastrosplenic ligaments are derivatives of the (dorsal) mesogastrium.
Synonym(s): mesogaster.
[meso- + G. gastēr stomach]

mesogastrium

the portion of the primitive mesentery that encloses the stomach; from its dorsal sheet, the greater omentum develops, and from its ventral sheet, the lesser omentum.
References in periodicals archive ?
The embryonic development of accessory spleens can be understood by taking into account the following five phases of splenic development: (1) The manner of formation of the major spleen with its notches and lobulations from separate splenic masses originating on the left side of the dorsal mesogastrium; (2) The formation of an accessory spleen by failure of fusion of splenic anlagen (Failure of fusion of the mesenchymal buds in the dorsal mesogastrium during the 5th week of fetal life).
An assumption made when hypothesizing that wandering spleen is of congenital origin is that the dorsal mesogastrium fails to fuse to the posterior abdominal wall during embryonic development.
Accessory spleen, found in 10%-30% of patients at autopsy, is due to the fusion failure of the splenic anlage, which is located in the dorsal mesogastrium.

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