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An oogonium (pl.: oogonia) is a small diploid cell which, upon maturation, forms a primordial follicle in a female fetus or the female (haploid or diploid) gametangium of certain thallophytes. In the mammalian fetus
Oogonium are the stem cells for oocytes, and were previously thought to be depleted during development during the production of the primary oocytes. [1] However, some of these stem cells have been found in the mouse and primate ovaries.
By definition it means, to recapitulate mammalian oogenesis and producing fertilizable oocytes in vitro.it is a complex process involving several different cell types, precise follicular cell-oocyte reciprocal interactions, a variety of nutrients and combinations of cytokines, and precise growth factors and hormones depending on the ...
The Oxford English Dictionary defines psychologism as: "The view or doctrine that a theory of psychology or ideas forms the basis of an account of metaphysics, epistemology, or meaning; (sometimes) spec. the explanation or derivation of mathematical or logical laws in terms of psychological facts."
This article needs more reliable medical references for verification or relies too heavily on primary sources, specifically: overreliance on primary sources, and a good deal of uncited text.
These dwarf males are derived from repeated cell division of multiflagellate androspores. When an oogonial mother cell divides, it forms a swollen oogonium bound by a supporting cell. Oogonial cells may exist in a series along the filament, and so division may also occur in a series; resulting in each oogonium containing a single egg. [19]
Gonadarche (/ ˌ ɡ oʊ n ə ˈ d ɑːr k i /) refers to the earliest gonadal (reproductive gland) changes of puberty. [1] In response to pituitary gonadotropins, the ovaries in females and the testes in males begin to grow and increase the production of the sex steroids, especially estradiol and testosterone. [2]
Dissociative fugue (/ f juː ɡ / FYOOG), previously referred to as a fugue state or psychogenic fugue, [1] is a rare psychiatric condition characterized by reversible amnesia regarding one’s identity, often accompanied by unexpected travel or wandering.