Anatomy Lesson 25: Ovulation and Implantation Quiz
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Questions and Answers

In ectopic pregnancy, implantation can occur outside the uterus due to what abnormality?

  • Blastocyst unable to develop in the uterus
  • Growth of the embryo and placenta
  • Increased vascularity at the implantation site (correct)
  • Endometrial shedding during the menstrual phase

    • What symptoms are commonly associated with ectopic pregnancy?

  • Joint pain and eye problems
  • Back pain and dizziness
  • Abdominal pain and vaginal bleeding (correct)
  • Headaches and nausea

    • How does the epithelium at abnormal implantation sites respond to the blastocyst?

  • Increased vascularity (correct)
  • Decreased supportive changes
  • No change in response
  • Decreased vascularity

    • Why are ectopic pregnancies considered medical emergencies?

    <p>Potential rupture of blood vessels</p> Signup and view all the answers

    What is the most common symptom of ectopic pregnancy?

    <p>Abdominal pain and vaginal bleeding</p> Signup and view all the answers

    What is the most significant risk associated with ectopic pregnancies?

    <p>Rupture of blood vessels</p> Signup and view all the answers

    What hormone prevents the degeneration of corpus luteum if fertilization occurs?

    <p>Human chorionic gonadotropin (hCG)</p> Signup and view all the answers

    In the absence of fertilization, what causes a mass of fibrotic scar tissue to form from the degenerated corpus luteum?

    <p>Reduction in progesterone levels</p> Signup and view all the answers

    What secretes human chorionic gonadotropin (hCG) in the context of pregnancy?

    <p>Corpus luteum</p> Signup and view all the answers

    What is the function of progesterone in maintaining the endometrial wall?

    <p>Maintaining endometrium thickness</p> Signup and view all the answers

    How does human chorionic gonadotropin (hCG) contribute to ectopic pregnancy?

    <p>Prevents degeneration of corpus luteum in an ectopic pregnancy</p> Signup and view all the answers

    What is the primary role of fimbriae in oocyte transport?

    <p>Sweeping over the ovary surface to catch the oocyte</p> Signup and view all the answers

    What hormone is responsible for causing ovulation?

    <p>Luteinizing Hormone (LH)</p> Signup and view all the answers

    What is the role of the corpus luteum after ovulation?

    <p>Produce progesterone</p> Signup and view all the answers

    What happens to the remaining cells of the ruptured follicle under the influence of LH?

    <p>They develop into yellowish pigment cells</p> Signup and view all the answers

    Which hormone is responsible for thickening the endometrium during the secretory phase of the menstrual cycle?

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

    What triggers the release of the oocyte surrounded by the cumulus oophorus during ovulation?

    <p>Increased LH levels</p> Signup and view all the answers

    The expansion of the secondary follicle into a preovulatory follicle is primarily influenced by which hormone?

    <p>Follicle-Stimulating Hormone (FSH)</p> Signup and view all the answers

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