Changes

Sexual differenciaton by default follows a pathways for development of female internal and external genitalia, requiring no active intervention. Endocrine activity of the testes, production of Androgens by Leydig cells and Mullerian Inhibiting hormone (MIH) by Sertoli cells, is required for sexual differenciation to be diverted down the male genitalia development pathway.

Sexual differenciaton by default follows a pathways for development of female internal and external genitalia, requiring no active intervention. Endocrine activity of the testes, production of Androgens by Leydig cells and Mullerian Inhibiting hormone (MIH) by Sertoli cells, is required for sexual differenciation to be diverted down the male genitalia development pathway.

= Internal Genetalia =

= Internal Genetilia =

From the primitive reproductive tracts the Internal genitalia can only develop into one gender and so are termed unipotent.  

From the primitive reproductive tracts the Internal genitalia can only develop into one gender and so are termed unipotent.  

* Male: The primitive male reproductive tract '''The Wolffian Duct''' developes from the '''Mesonephric Duct'''

* Male: The primitive male reproductive tract '''The Wolffian Duct''' developes from the '''Mesonephric Duct'''

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= External Genetalia =

= External Genetilia =

External genitalia have the potencial to be either gender and so are bipotential.

External genitalia have the potencial to be either gender and so are bipotential.