The female reproductive system is a complex system of external and internal organs that produce eggs that are necessary for reproduction. One egg is prepared for fertilization every month. If that egg isn't fertilized with sperm, you'll get your period — the result of your uterus shedding the...
Oocytes are essential cells capable of developing into eggs, which can be matured either in vivo or in vitro. These cells progress through three distinct stages: primary oocytes, secondary oocytes and mature oocytes [126]. Primary oocytes, which are diploid cells in the initial stage of meiosis,...
The two ovaries contain hundreds of undeveloped female sex cells called egg cells or ova(the plural of ovum). Women have these cells in their bodies from birth - whereas men produce new sperm continually. 两个卵巢包含数百个未充分发育的雌性性细胞,这些细胞称为卵细胞或卵子。女性出生时就带有这些...
Reproductive System FemaleReproductive Anatomy FemaleReproductiveSystem Essentialorgans Gonadsorovaries Accessoryorgans 1.ducts–including oviducts,uterus,andvagina 2.sexglands–includingthe breasts. 3.externalgenitals Ovaries Resemblelargealmonds ...
BUT these are not "true eggs" yet, and will never complete meiosis (a special type of cell division) and become "true eggs" unless OR until they are first fertilized by a sperm. Within the ovary, a follicle consists of one potential egg cell surrounded by special cells to nourish and ...
As they move forward into sec- ondary oocytes, they become haploid cells after the first meiosis and contain fewer nutrients and mRNA [127]. Finally, mature eggs undergo the second meiosis and become fully functional haploid cells capable of fertili- zation. In terms of in vitro culture, ...
Physiologyofthefemalereproductivesystem1女性の生涯2月経現象3性周期と卵巣の形態学的変化4子宫の周期的変化と卵巣ホルモンとの関係5性周期と各種ホルモ..
The Female Reproductive System 女性生殖系统 The Internal Reproductive Organs The Ovary 卵巢 The Uterine tube 输卵管 The Uterus 子宫 The Vagina 阴道 The Accessory Gland 附属腺 The External Reproductive Organs ⅠThe Internal Reproductive Organs Ⅰ﹚ Ovary 卵巢 1.Position-lies in the ovarian fossa 2.Sh...
endometrial cells present abnormal growth outside the uterus, and a major cause of infertility (Fig.5, Supplementary Data11). Altogether, these results suggest that the composition of the vagino-uterine microbiota potentially could be used to detect a number of ailments common to reproductive age ...
Hollow spheres of cells surrounding a cavity of fluid, comprising the early stages in the development of embryos. Ovipositor The tube-like organ at the bottom of the abdomen that female arthropods use to lay eggs. Spermathecae An organ in the female reproductive tract in insects that is used...