Menstrual Cycle and Disorders

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Questions and Answers

What is the primary hormonal change that induces menstruation?

  • Increase in estradiol levels (correct)
  • Decrease in LH levels
  • Increase in progesterone levels
  • Decrease in FSH levels

During the ovulatory phase, what event occurs in the ovary?

  • Corpus luteum formation
  • Release of inhibin B
  • Rupture of preovulatory follicle wall (correct)
  • Selection of a dominant follicle

What is the primary function of the endometrium during the luteal phase?

  • Undergoing secretory changes (correct)
  • Releasing inhibin B
  • Releasing progesterone
  • Producing estradiol

How many eggs are typically released during each menstrual cycle in humans?

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

What is the role of inhibin B during the follicular phase?

<p>Produced by the dominant follicle (A)</p> Signup and view all the answers

What is the primary outcome if pregnancy does not occur during the menstrual cycle?

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

What percentage of follicles become atretic?

<p>99% (C)</p> Signup and view all the answers

Which of the following factors contributes to the digestion and rupture of the follicle wall?

<p>Prostaglandins and proteolytic enzymes (C)</p> Signup and view all the answers

How many hours before ovulation does the LH surge occur?

<p>34-36 hours (B)</p> Signup and view all the answers

During which phase of the endometrium is the endometrium UNSTABLE?

<p>E proliferative phase (C)</p> Signup and view all the answers

What is the characteristic of mucus during the luteal phase?

<p>Thick and viscid (D)</p> Signup and view all the answers

What is the result of the rapid decline in steroids during the menstrual phase?

<p>Shedding of the unused endometrium (A)</p> Signup and view all the answers

What is the primary function of the mucinous layer of carbohydrate products discharged from glands and stromal cells in the menstrual fluid?

<p>To protect the endometrium from lytic enzymes (A)</p> Signup and view all the answers

What is the average length of a menstrual cycle, considering a normal variation of +/- 7 days?

<p>28 days (B)</p> Signup and view all the answers

What is the significance of the basalis layer in the menstrual cycle?

<p>It is the layer that is responsible for the repair of the endometrium (B)</p> Signup and view all the answers

What is the term for the breakdown of the endometrial functionalis layer?

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

What is the primary component of the menstrual fluid that causes clotting if the rate and flow are high?

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

What is the term for the normal amount of menstrual bleeding, in terms of volume?

<p>Around 80 ml (D)</p> Signup and view all the answers

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