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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
The temporary endocrine gland in humans is ______.
Secretion of progesterone by corpus luteum is initiated by ______.
Define ovulation.
Menstruation is triggered by an abrupt decline in the amount of ______.
After ovulation the collapsed ovarian follicle shrinks and becomes filled with cell to form:
Identify the correct statement from the following:
Describe hormonal control in various phases of the menstrual cycle.
Complete the table:
| Number | Type | No. of pairs | Region |
| C1C8 | Cervical | ______ | Neck |
| T1T12 | ______ | 12 pairs | ______ |
| L1L5 | Lumbar | ______ | Lower back |
| S1S5 | ______ | 5 pairs | ______ |
| CO1 | Coccygeal | ______ | ______ |
What groups of animals exhibit the menstrual cycle?
How many phases does the menstrual cycle consist of?
