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The egg cell or ovum (pl.: ova) is the female reproductive cell, or gamete, [1] in most anisogamous organisms (organisms that reproduce sexually with a larger, female gamete and a smaller, male one). The term is used when the female gamete is not capable of movement (non-motile).
Oogenesis, in the human female reproductive system, growth process in which the primary egg cell (or ovum) becomes a mature ovum. In any one human generation, the egg’s development starts before the female that carries it is even born; 8 to 20 weeks after the fetus has started to grow, cells that.
Oogenesis (/ ˌ oʊ. ə ˈ dʒ ɛ n ɪ s ɪ s /) or ovogenesis is the differentiation of the ovum (egg cell) into a cell competent to further develop when fertilized. [1] It is developed from the primary oocyte by maturation.
Oogenesis—the differentiation of the ovum—differs from spermatogenesis in several ways. Whereas the gamete formed by spermatogenesis is essentially a motile nucleus, the gamete formed by oogenesis contains all the materials needed to initiate and maintain metabolism and development.
27 mar 2024 · The egg cell, also known as the ovum, is the female reproductive cell. The egg cell is released from the ovaries in the female reproductive system. The egg cell is the female gamete responsible for reproduction in female organisms. This cell is formed through the process of oogenesis.
21 wrz 2020 · Despite the profound impact on egg quality, morphological bases of cytoplasmic maturation remain largely unknown. Here, we report our findings from the ultrastructural analysis of 69 unfertilized human oocytes from 34 young and healthy egg donors.
30 sty 2012 · Oocyte growth and differentiation. Primary follicle development is accompanied by striking changes in the oocyte. During the preantral period, the oocyte increases in diameter from ~25 µm to ~120 µm and develops its surrounding extracellular matrix, the zona pellucida (ZP).
