2017-07-30T16:13:13+03:00[Europe/Moscow] en true Zygote, Blood–testis barrier, Hysterectomy, Gametogenesis, Late-onset hypogonadism, Spermatid, Zona pellucida, Placenta, Tannerella forsythia, Sperm, Porphyromonas gingivalis, Tubo-ovarian abscess, Residual ovary syndrome, Prevotella intermedia, Veillonella parvula, Cortical reaction flashcards
Reproductive system

Reproductive system

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  • Zygote
    A zygote (from Greek ζυγωτός zygōtos "joined" or "yoked", from ζυγοῦν zygoun "to join" or "to yoke"), is a eukaryotic cell formed by a fertilization event between two gametes.
  • Blood–testis barrier
    The blood–testis barrier is a physical barrier between the blood vessels and the seminiferous tubules of the animal testes.
  • Hysterectomy
    Hysterectomy (from Greek ὑστέρα, hystera, "uterus" + ἐκτομή, ektomḗ, "a cutting out of") is the surgical removal of the uterus.
  • Gametogenesis
    Gametogenesis is a biological process by which diploid or haploid precursor cells undergo cell division and differentiation to form mature haploid gametes.
  • Late-onset hypogonadism
    Late-onset hypogonadism is a rare condition in older men, characterized by measurably low testosterone levels and clinical symptoms mostly of a sexual nature, including decreased desire for sex, fewer spontaneous erections, and erectile dysfunction.
  • Spermatid
    The spermatid is the haploid male gametid that results from division of secondary spermatocytes.
  • Zona pellucida
    The zona pellucida (plural zonae pellucidae, also egg coat or pellucid zone) is a glycoprotein layer surrounding the plasma membrane of mammalian oocytes.
  • Placenta
    The placenta (also known as afterbirth) is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, provide thermo-regulation to the fetus, waste elimination, and gas exchange via the mother's blood supply, fight against internal infection and produce hormones to support pregnancy.
  • Tannerella forsythia
    Tannerella forsythia is an anaerobic, Gram-negative bacterial species of the Cytophaga-Bacteroidetes family.
  • Sperm
    Sperm is the male reproductive cell and is derived from the Greek word (σπέρμα) sperma (meaning "seed").
  • Porphyromonas gingivalis
    Porphyromonas gingivalis belongs to the phylum Bacteroidetes and is a nonmotile, Gram-negative, rod-shaped, anaerobic, pathogenic bacterium.
  • Tubo-ovarian abscess
    Tubo-ovarian abscesses (TOA) are one of the late complications of pelvic inflammatory disease (PID) and can be life-threatening if the abscess ruptures and results in sepsis.
  • Residual ovary syndrome
    Residual ovary syndrome or ovarian remnant syndrome is a condition that occurs when ovarian tissue is left behind following oophorectomy, causing development of a pelvic mass, pelvic pain, and occasionally dyspareunia.
  • Prevotella intermedia
    Prevotella intermedia (formerly Bacteroides intermedius) is a gram-negative, obligate anaerobic pathogenic bacterium involved in periodontal infections, including gingivitis and periodontitis, and often found in acute necrotizing ulcerative gingivitis.
  • Veillonella parvula
    Veillonella parvula is a bacterium in the genus Veillonella.
  • Cortical reaction
    The cortical reaction is a process initiated during fertilization by the release of cortical granules from the egg which prevents polyspermy, the fusion of multiple sperm with one egg.