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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?
Explain the events that occur in a graafian follicle at the time of ovulation and thereafter.
Define Amenorrhea
Read the following passage and answer the question that follows:
Rahini and her parents were watching a television programme. An advertisement flashed on the screen which was promoting the use of sanitary napkins. Rahini’s parents suddenly changed the channel, but she objected to her parents and explained the need and importance of such an advertisement.
What is first menstruation called? When does it occur?
Read the following passage and answer the question that follows:
Rahini and her parents were watching a television program. An advertisement flashed on the screen which was promoting the use of sanitary napkins. Rahini’s parents suddenly changed the channel, but she objected to her parents and explained the need and importance of such an advertisement.
Do you think that Rahini’s objection towards her parents was correct? If so, Why?
Expand the acronym.
FSH
Luteal phase is also known as ____________.
Corpus luteum produces ______.
Immediately after ovulation, the mammalian egg is covered by a membrane known as ______.
Mainly which type of hormones control the menstrual cycle in human beings?
Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?
Corpus luteum ______.
Which one of the following statements is incorrect about menstruation?
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. |
Which structure in the ovary will remain functional in subject 2?
Distinguish between pollination and fertilisation. Mention the site and product of fertilisation in a flower.
Draw a neat, labelled diagram of a pistil showing pollen tube growth and its entry into the ovule.
Which of the following events is not associated with ovulation in human females?
What role does pituitary gonadotropins play during follicular and ovulatory phases of menstrual cycle? Explain the shifts in steroidal secretions.
Name the following:
The permanent stoppage of menstruation in human females around the age of 45 years.
In the human menstrual cycle, the ovulation occurs around ______.
