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प्रश्न
A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.
Women experiences two major events in their life time one at menarche and the second at menopause. Mention the characteristics of both the events.
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उत्तर
Menarche:
- It is the first menstrual flow in a girl’s life.
- Occurs between age 11 to 13 years.
- Marks the beginning of reproductive phase.
- Indicates onset of puberty and ovulation begins.
Menopause:
- It is the permanent cessation of menstrual cycles.
- Occurs between age 45 to 50 years.
- Ovarian follicles stop responding to pituitary hormones.
- Ovulation and menstruation cease; fertility ends.
- Estrogen levels fall, causing physical and psychological changes.
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संबंधित प्रश्न
Name and explain the role of the inner and middle walls of the human uterus.
Name the function of the following:
Corpus luteum
Why is follicular phase in the menstrual cycle also referred as proliferative phase? Explain.
The Graafian follicle, after ovulation turns into a hormone producing issue called Corpus callosum.
Explain the menstruation phases in the menstrual cycle of a human female.
Give Reasons
Missing of menses is the first indication of pregnancy.
Give Technical Term:
The phase in the menstrual cycle in which the remnant of a follicle in the ovary turns to corpus luteum.
Multiple Choice Question:
The onset of menstruation in the female is termed
Meanrch, menstrual cycle, and menopause are controlled by ______.
Explain the ovarian cycle with its different phases.
Follicle stimulating hormone : Development of oocyte : : Luteinizing hormone : ____________
State the names of four hormones which control menstrual cycle.
Explain the importance of cleanliness during the time of menstrual cycle in girls.
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?
What are the phases of the menstrual cycle? Indicate the changes in the ovary and uterus.
Answer the following type of question Assertion (A) and Reason (R).
(A) - Ovulation is the release of the ovum from the Graafian follicle.
(R) - It occurs during the follicular phase of the menstrual cycle.
Match the Columns.
| Column I | Column II | ||
| i. | Proliferative phase | a. | Breakdown of the endometrial lining |
| ii. | Secretory phase | b. | Follicular phase |
| iii. | Menstruation | c. | Luteal phase |
Corpus luteum develops under the influence of ______.
Mainly which type of hormones control the menstrual cycle in human beings?
In the human female, menstruation can be deferred by the administration of ______.
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?
Hormones responsible for menstrual cycle are produced from ______.
The Corpus luteum grows during menstruation.
When does the corpus luteum degenerate?
Which of the following events is not associated with ovulation in human females?
Write a short note on Secretory Phase.
Name the following:
The permanent stoppage of menstruation in human females around the age of 45 years.
The onset of menstruation in a human female is called ______.
Longest phase of menstrual cycle is ______.
