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प्रश्न
Explain the events that occur in a graafian follicle at the time of ovulation and thereafter.
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उत्तर
At the time of ovulation, the release of gonadotropins (LH and FSH) increases. The LH and FSH are at their peak in the middle of the cycle (14th day) and cause the rupture of the Graafian follicle to release the ovum. The remains of the Graafian follicle get converted to the corpus luteum, which secretes progesterone for the maintenance of the endometrium in case of pregnancy.
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संबंधित प्रश्न
Identify True/False statement. Correct false statement to make it true.
Menstrual cycle ceases during pregnancy.
Why is follicular phase in the menstrual cycle also referred as proliferative phase? Explain.
Complete the following sentences with appropriate word:
The human gestation period is about ____________.
Explain the ovarian cycle with its different phases.
The luteal phase of the menstrual cycle is also called the secretory phase. Give reason.
Detection of which hormone in urine is an indicator of pregnancy?
During which phase of the menstrual cycle does the endometrium thicken up to 8-10 mm?
Menstruation is triggered by a sudden decline in the amount of hormone secreted by corpus luteum. Identify the hormone.
A biology student after studying the different levels of hormones during the menstrual cycle was comparing 2 subjects (Patients). A table was created after looking at the levels of hormones A and B for Subjects 1 and 2. Read the information in the table and answer the question that follows.
| HORMONE A | HORMONE B | |
| Subject 1 | Shows a peak on the 14th Day of the menstrual cycle. | Falls down during the luteal phase. |
| Subject 2 | Shows a peak on the 14th Day of the menstrual cycle. | The level is maintained high in the luteal phase. |
For subject 2 it is observed that the peak for hormone B has reached the plateau stage. After approximately how much time will the curve for hormone B descend?
Name the following:
The permanent stoppage of menstruation in human females around the age of 45 years.
