genital ridge


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ridge

 [rij]
a linear projection or projecting structure; a crest.
alveolar ridge a bony ridge of the maxilla or mandible, the part of the alveolar process that contains the alveoli; called also alveolar crest.
dental ridge any linear elevation on the crown of a tooth.
Dental ridges in a maxillary molar. From Dorland's, 2000.
dermal r's ridges of the skin produced by the projecting papillae of the corium on the palm of the hand and sole of the foot, producing a fingerprint and footprint characteristic of the individual; called also cristae cutis.
genital ridge the more medial part of the urogenital ridge, giving rise to the gonad.
healing ridge an indurated ridge that normally forms deep to the skin along the length of a healing wound.
incisal ridge the part of the crown of an anterior tooth that makes up the actual incisal portion; see incisal surface, under surface.
interureteric ridge a fold on mucous membrane extending across the bladder between the ureteric orifices.
mammary ridge an ectodermal thickening in early embryos, along which the mammary glands subsequently develop.
mesonephric ridge the more lateral portion of the urogenital ridge, giving rise to the mesonephros.
oblique ridge a variable linear elevation obliquely crossing the occlusive surface of a maxillary molar.
urogenital ridge a longitudinal ridge in the embryo, lateral to the mesentery.

go·nad·al ridge

an elevation of thickened mesothelium and underlying mesenchyme on the ventromedial border of the embryonic mesonephros; the primordial germ cells become embedded in it, establishing it as the primordium of the testis or ovary.

genital ridge

A ridge that develops on the ventromedial surface of the urogenital ridge and gives rise to the gonads.
See also: ridge
References in periodicals archive ?
During genital ridge formation, quail primordial germ cells (qPGCs) can be seen in their migratory routes and the genital ridges.
During genital ridge formation, putative qPGCs were found in both left and right genital ridges as well as the dorsal mesentery.
In conclusion, gonadogenesis in quail embryos is classified into three phases such as genital ridge formation, gonadal differentiation, and gonadal function based on embryonic gonadal development.
Zarkower, "Expression of Dmrt1 in the genital ridge of mouse and chicken embryos suggests a role in vertebrate sexual development," Developmental Biology, vol.
This can occur if the division separates from only a small part of the genital ridge that is not in contact with the rete testis.
This can occur if there is complete transverse division through the genital ridge and the mesonephros.
This may result if the division of the genital ridge does not include the mesonephros.
Donor cells (PGCTs) preparation.--PGC's were isolated from male genital ridges of 14,5 dpc fetal mice after two enzymatic digestion steps.