Hormones and Processes in Maintaining Pregnancy
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Questions and Answers

Which type of nutrition occurs during the pre-implantation stage of pregnancy?

  • Uterine nutrition
  • Haemotrophic nutrition
  • Diffusion nutrition
  • Histiotrophic nutrition (correct)

What is the function of the chorion in the development of the placenta?

  • Allows diffusion of nutrients
  • Forms the placenta (correct)
  • Produces hormones
  • Transfers nutrients from mother to fetus

When does the transfer of nutrients from maternal blood occur during pregnancy?

  • During blastocyst stage
  • From week 2
  • Post-implantation (correct)
  • Pre-implantation

Which cells are responsible for the production of testosterone in males?

<p>Leydig cells (A)</p> Signup and view all the answers

What is the role of the SRY gene in sexual development?

<p>Determines testis development (C)</p> Signup and view all the answers

Which ducts degenerate in the absence of testosterone?

<p>Paramesonephric ducts (B)</p> Signup and view all the answers

What determines the genetic sex of an individual?

<p>Inheritance of the Y chromosome (C)</p> Signup and view all the answers

Which layer separates the maternal and fetal blood in the placenta?

<p>Syncytiotrophoblast (A)</p> Signup and view all the answers

When does the development of the placenta start?

<p>Beginning of Week 2 (C)</p> Signup and view all the answers

Which of the following functions is NOT established by the end of Week 12 after fertilization?

<p>Endocrine function (A)</p> Signup and view all the answers

What is the role of the placenta in maternal acceptance of the fetus?

<p>Immunomodulatory role (B)</p> Signup and view all the answers

Which hormone maintains the functional endometrium and helps develop the breasts during pregnancy?

<p>Progesterone (B)</p> Signup and view all the answers

During pregnancy, which hormone enlarges the uterus and later relaxes the pelvic ligaments and pubic symphysis?

<p>Oestrogen (C)</p> Signup and view all the answers

Which hormone stimulates cortisol production via the fetal H-P-adrenal axis during pregnancy?

<p>CRH (C)</p> Signup and view all the answers

Which hormone decreases glucose metabolism and uses fatty acid metabolism in the mother during pregnancy?

<p>hCS/hPL (D)</p> Signup and view all the answers

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