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प्रश्न
Write the answers to the following questions by observing the figure below.
- What does the figure above show?
- Which organs are involved in this process?
- Which hormones are involved in this process?
- After how many days do these changes happen again?
- Explain your opinion about the statement that a woman's body is impure while the above process is going on.
उत्तर
- The given figure represents the menstrual cycle in females.
- Uterus and ovaries are involved in menstrual cycle.
- Menstrual cycle is controlled by four hormones: follicle stimulating hormone (FSH), luteinizing hormone (LH), estrogen and progesterone.
- After at an interval of every 28-30 days changes happen again.
- It is a long-standing myth in various cultures that menstrual blood is impure and that women who is menstruating are unclean and unhygienic. However, there is no truth to this myth as menstruation is a natural process in which endometrial tissue and unfertilized ovum are expelled through the vagina. The menstrual cycle is not something to be ashamed of and should not be considered as unclean or impure, rather women should be encouraged to keep themselves hygienic and cleaner as the bodily changes can make them more susceptible to infections. Hence, creating awareness in society regarding the taboo around menstruation is essential.
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संबंधित प्रश्न
Explain the role of pituitary and the ovarian hormones in menstrual cycle in human females
Why is follicular phase in the menstrual cycle also referred as proliferative phase? Explain.
the Biological/technical term for Complete stoppage of menstrual cycle in females
Give appropriate biological or technical terms for the following:
The onset of menstruation in a young girl
Draw a neat and well-labeled diagram showing T.S. of the ovary and describe the menstrual cycle in human females.
Explain the role of hormones during the menstrual cycle.
Complete the following sentences with appropriate word:
The human gestation period is about ____________.
Multiple Choice Question:
The onset of menstruation in the female is termed
Explain the ovarian cycle with its different phases.
The menstrual cycle ceases during pregnancy.
Which one of the following menstrual irregularities is correctly matched?
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 |
How long does the secretory phase of the menstrual cycle last?
Which hormone is secreted by the developing secondary follicles?
Corpus luteum produces ______.
The endometrium in the female is the lining of ______.
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 of the following statements is true about the subjects?
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.
The main function of mammalian corpus luteum is to produce ______.
Write a short note on Secretory Phase.
