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प्रश्न
Mention the importance of LH surge during menstrual cycle.
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उत्तर
A rapid surge in LH induces the rupture of the Graafian follicle. This facilitates the release of an ovum. Thus, the rapid surge in LH facilitates ovulation.
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संबंधित प्रश्न
What is menstrual cycle?
Give appropriate biological or technical terms for the following:
The onset of menstruation in a young girl
Give appropriate terms for each of the following process:
Fixing of developing zygote (blastocyst) on the uterine wall.
Name the Following
Sloughing of the uterine wall during menstrual flow.
What is the menstrual cycle?
Which one of the following menstrual irregularities is correctly matched?
Detection of which hormone in urine is an indicator of pregnancy?
Which one of the following events occurs during the secretory phase of the menstrual cycle?
How long does the secretory phase of the menstrual cycle last?
In the absence of fertilization, corpus luteum ____________.
The temporary endocrine gland in humans is ______.
Secretion of progesterone by corpus luteum is initiated by ______.
Withdrawal of which of the following hormones is the immediate cause of menstruation?
To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.
The peak observed in Subject 1 and 2 is due to ______
Menstruation normally occurs once in ______.
The level of progesterone is high at which phase in the menstrual cycle?
A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.
Observe the figure and label it properly.
- Name the hormone that regulates the cycle.
- Name the phases in this cycle.
- What is the duration of ovulation phase?
- What happens if implantation occurs?
- What happens if implantation does not occur?
The figure show a section of human ovary. Select the option which gives the correct identification of either A or B with function/characteristic.
Complete the table:
| Number | Type | No. of pairs | Region |
| C1C8 | Cervical | ______ | Neck |
| T1T12 | ______ | 12 pairs | ______ |
| L1L5 | Lumbar | ______ | Lower back |
| S1S5 | ______ | 5 pairs | ______ |
| CO1 | Coccygeal | ______ | ______ |
