16 Questions
During which phase of the menstrual cycle does ovulation occur?
Luteal phase
Which hormone is primarily responsible for the maturation of the dominant vesicular follicle?
Luteinizing Hormone (LH)
What is the main function of progesterone during the menstrual cycle?
Decreased myometrial contractility
In which phase of the menstrual cycle does the corpus luteum begin to regress?
Luteal phase
Which hormone is responsible for endometrial secretory changes in preparation for potential embryo implantation?
Progesterone
What is the most useful 'test' of ovarian function in pre-menopausal women?
Careful menstrual history
How can ovulation be confirmed during the menstrual cycle?
Measuring plasma progesterone levels during the luteal phase
What happens to LH and FSH levels in the 5 years leading up to menopause?
They typically rise above 30 IU/L (3.3 µg/L)
What is the term used to describe the period of time with a gradual increase in anovulatory cycles before menopause?
Climacteric
What happens to oestrogen and inhibin secretion as menopause approaches?
They fall
What hormone stimulates growth and development of ovarian follicles during the first 14 days after menses?
Follicle-stimulating hormone (FSH)
What hormone induces ovulation in the middle of the menstrual cycle?
Luteinising hormone (LH)
Which hormone initially suppresses FSH secretion due to negative feedback during the menstrual cycle?
Oestradiol
What leads to a marked increase in LH secretion due to positive feedback during the menstrual cycle?
Oestradiol
What hormone does the corpus luteum secrete after ovulation?
Progesterone
What results in menstrual bleeding if pregnancy does not occur during the menstrual cycle?
Decrease in oestradiol levels
Test your knowledge of ovulation, follicular phase, luteal phase, and feedback mechanisms in the menstrual cycle. Explore the roles of hormones like FSH, LH, inhibin, estradiol, and progesterone in the process.
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