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Fetomaternal Immunity: Early Embryo Development Quiz
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Fetomaternal Immunity: Early Embryo Development Quiz

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@IllustriousAlgorithm

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Questions and Answers

What gives rise to the placenta in the human blastocyst?

  • The inner cell mass
  • The decidua
  • The corpus luteum
  • The external layer (trophectoderm) (correct)
  • What term is used to describe the cellular modifications and vascular alterations in the endometrial stromal cells?

  • Implantation
  • Decidual reaction (correct)
  • Trophoblast invasion
  • Blastocyst formation
  • What initiates implantation in the early stages of pregnancy?

  • Decidualization
  • Blastocyst formation
  • Trophoblast invasion (correct)
  • Progesterone production
  • What is responsible for inducing endometrial stromal cells to undergo cellular modifications and vascular alterations?

    <p>Progesterone</p> Signup and view all the answers

    What forms the base of the placental bed in early pregnancy?

    <p>Decidua</p> Signup and view all the answers

    Which immune cells make up approximately 70% of decidual leukocytes during early pregnancy?

    <p>NK cells</p> Signup and view all the answers

    What is the term used to describe the immunological response to the presence of antigens of maternal and paternal origin in the fetus?

    <p>Semiallogenic response</p> Signup and view all the answers

    What is the main immunological regulation involved in maintaining pregnancy?

    <p>Both cellular and humoral regulation</p> Signup and view all the answers

    What is the term for recurrent spontaneous abortion defined as three or more consecutive spontaneous miscarriages before the 20th week of pregnancy?

    <p>Recurrent miscarriage</p> Signup and view all the answers

    What type of antibodies capable of specifically inhibiting maternal autologous immune responses have been demonstrated in normal pregnant women?

    <p>Anti-T-cell receptor (TCR) idiotypic antibodies</p> Signup and view all the answers

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