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Sexual differentiation in humans is the process of development of sex differences in humans. It is defined as the development of phenotypic structures consequent to the action of hormones produced following gonadal determination. Sexual differentiation includes development of different genitalia and the internal genital tracts and body hair plays a role in gender identification. Media in category sex in humans the following 15 files are in this category, out of 15 total. In humans, the choice between male or female development is genetically determined. Sex determination occurs as the undifferentiated and bipotential embryonic gonad becomes either testes or ovary. This process is influenced by the action of genes that have been discovered by genetics studies of sex-reversed patients, xy females, xx males, and xx true hermaphrodites. Disorders of sex development (dsds), also known as differences in sex development, diverse sex development and variations in sex characteristics (vsc), are medical conditions involving the reproductive system. More specifically, these terms refer to congenital conditions in which development of chromosomal, gonadal, or anatomical sex is atypical. Sex differences of importance to health and human disease occur throughout the life span, although the specific expression of these differences varies at different stages of life. Some differences originate in events occurring in the intrauterine environment, where developmental processes differentially organize tissues for later activation in the male or female.   human development, the process of growth and change that takes place between birth and maturity. The growth and development of a child consists of a highly complex series of changes, with different tissues and different regions of the body maturing at different rates. The development of two sexes is observed in most animals and is essential for their survival and evolution. Disorders of sex development (dsds see glossary, box 1) are among the most common genetic diseases in humans and are often associated with genital ambiguity (kronenberg and williams, 2007). Because of its clinical and biological importance, identifying the mechanism of sex. A lot of things need to happen in the sexual development of children in order for them to be sexually healthy adults. In order for you to understand the tasks they need to accomplish, lets take a look at sexual development from birth through 18 years old of a typical child. The male gametes, or sperm cells, in humans and other mammals are heterogametic and contain one of two types of sex chromosomes. Female gametes, or eggs, however, contain only the x sex chromosome and are homogametic. The sperm cell determines the sex of an individual in this case. Which sex organs develop depends on the presence of a y chromosome and the male hormone testosterone and anti-mullerian hormone (amh). If the embryo has both an x and a y chromosome and produces the two hormones, then the testosterone will stimulate the wolffian duct to develop male sex organs, including the vas deferens and the.

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