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EMBRYONIC DEVELOPMENT & STEM CELL COMPENDIUM
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LifeMap Discovery

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All Anatomical Compartments > Compartment Card
Testis >

Testis Cord


Tst.TsCr
The testis cord is the earliest morphological sign of testis differentiation, and is discernible at approximately 36 hours following SRY expression, between E12.0-12.5. The testis cord comprises aggregates of germ cells surrounded by a layer of Sertoli cells, which are, in turn, encased by peritubular myoid cells. Eventually, the testis cord matures into the seminiferous tubules of the adult testis.

The basement membrane formed by and between Sertoli and peritubular myoid cells is an important component of the sex cords.
Testis Cord
Multiple Ancestors Single Ancestor No Descendants Develops from Part of Parent