Menstrual Cycle
Biology ⇒ Reproduction and Development
Menstrual Cycle starts at 8 and continues till grade 12.
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See sample questions for grade 11
A 16-year-old girl reports irregular menstrual cycles. List two possible physiological reasons for this.
A woman’s last menstrual period started on March 1st. Assuming a 28-day cycle, on which date is her next period expected to start?
Describe the changes in hormone levels that trigger menstruation.
Describe the changes that occur in the ovary during the follicular phase.
Describe what happens to FSH and LH levels during the luteal phase.
Describe what happens to the corpus luteum if fertilization does not occur.
During which phase of the menstrual cycle does the endometrium shed?
Explain the feedback mechanism between the ovaries and the pituitary gland during the menstrual cycle.
Explain the role of progesterone in the menstrual cycle.
Explain why menstruation does not occur if pregnancy happens.
Explain why the menstrual cycle is important for reproduction.
If a woman’s menstrual cycle is 32 days long, on which day is ovulation most likely to occur?
List two main functions of the menstrual cycle.
Name the four main phases of the menstrual cycle in order.
What event marks the beginning of the menstrual cycle?
What is the average duration of menstrual bleeding in a typical cycle?
What is the main function of luteinizing hormone (LH) in the menstrual cycle?
What is the primary function of the endometrium during the menstrual cycle?
A patient has a consistently short luteal phase (less than 10 days). Discuss the possible implications for fertility and the hormonal basis for this condition.
A researcher observes that in a group of women, the length of the follicular phase varies, but the luteal phase remains constant. Explain the biological reason for this observation.
