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Overview of Male Reproductive Physiology
male genital organs; reproductive function, male; reproductive system.
The identical embryologic anlage produce female or male external genetalia depending the level of testosterone. Lack of the SRY gene (typically found on the Y chromosome) leads to development of ovaries, with subsequent maturation of female sex organs. Conversely, the presence of this gene leads to testicular development, with masculinization of the reproductive tract. The scrotum and penis are cognates of the labia majora and clitoris, respectively. Ambiguous genitalia occur when development and maturation occurs with a mixed genetic substrate or hormonal environment...."
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