Sex cord

(embryology) Cordlike masses of epithelial tissue that invaginate from germinal epithelium of the gonad and give rise to seminiferous tubules and rete testes in the male, and primary ovarian follicles and rete ovarii in the female.

Sex cord
Precursor	gonadal ridge
Gives rise to	testis cords, cortical cords

In animal embryology, the sex cords (or primitive sex cords) are structures that develop from the gonadal ridge. After sexual differentiation, in males the sex cords become the testis cords, which help develop and nourish the Sertoli cells, while in females they become the cortical cords.

External links

• Embryology at UNSW Medicine/BGDlabXYXX_5
• Overview at temple.edu

See also

• Sex cord-stromal tumour

This developmental biology article is a stub. You can help Wikipedia by expanding it. v • d • e

v • d • e Prenatal development/mammalian embryogenesis - Development of the urinary and reproductive organs (GA 11.1204) Common Urinary/Reproductive system Cloacal membrane - Cloaca - Urethral groove - Urogenital sinus - Urachus - Urogenital folds Kidney development Nephrogenic cord - Nephrotome - Pronephros - Mesonephros (Mesonephric tubules) Ureteric bud - Metanephric blastema Fetal genital development Primarily internal Gonadal ridge - Sex cord (Cortical cords, Testis cords) Pronephric duct/Wolffian duct/mesonephric duct - Müllerian duct/paramesonephric ducts (Vaginal plate) Primarily external Genital tubercle - Phallus - Labioscrotal folds Gubernaculum - Processus vaginalis Homologues List of homologues of the human reproductive system urinary system navs: anat/physio/dev, noncongen/acid+base/congen/neoplasia, symptoms+signs/eponymous, proc reproductive system navs: anat female,male/physio/dev, noncongen/congen/neoplasia, symptoms+signs/eponymous, proc

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