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2)The seminiferous tubules are the site of spermatogenesis. The two main cell types within the tubules involved in spermatogenesis are the germ cells, which will develop into sperm, and somatic cells known as Sertoli cells, which nuture the germ cells throughout the development process.
3)fallopian tubes
4)The implantation normally takes place in the superior and posterior walls of the uterine body (corpus uteri) in the functional layer of the endometrium during the secretory phase of the cycle. Normal implantation zone of the blastocyst in the superior and posterior wall of the uterine cavity.
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