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प्रश्न
Identify True/False statement. Correct false statement to make it true.
Menstrual cycle ceases during pregnancy.
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उत्तर
This statement is true.
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संबंधित प्रश्न
Describe the role of pituitary and ovarian hormones during the menstrual cycle in a human female.
Name the function of the following:
Corpus luteum
the biological/technical terms for Fixing of developing zygote on the uterine wall.
Give a significant point of difference between the oestrous and menstrual cycles.
How can the scientific understanding of the menstrual cycle of human females help as a contraceptive measure?
Differentiate between the following pair:
Menarche and menopause
Define: Menarche
Meanrch, menstrual cycle, and menopause are controlled by ______.
Explain the ovarian cycle with its different phases.
Explain the importance of cleanliness during the time of menstrual cycle in girls.
Painful menstruation is termed as ____________.
Which one of the following menstrual irregularities is correctly matched?
Calculate the number of spermatozoa produced by a single primary spermatocyte.
All occur during follicular phase of menstrual cycle, EXCEPT
On the fourteenth day of the menstrual cycle the female gamete released is _____.
Secretion of progesterone by corpus luteum is initiated by ______.
Withdrawal of which of the following hormones is the immediate cause of menstruation?
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.
Menstrual flow occurs due to lack of ______.
At which stage of the menstrual cycle, both LH and FSH are high?
The level of progesterone is high at which phase in the menstrual cycle?
Identify the correct statement from the following:
A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.
Given below is a flow chart showing ovarian changes during menstrual cycle. Fill in the spaces giving the name of the hormones responsible for the events shown.

Answer the following questions by observing the diagram of menstrual cycle:

- What is the period of menstruation?
- On which day does ovulation occur during the menstrual cycle?
- In the menstrual cycle which reproductive organs undergo changes?
- Which period is said to be the period of regeneration of endometrium?
- Which period is said to be the period of secretions of glands in endometrium?
Complete the table:
| Number | Type | No. of pairs | Region |
| C1C8 | Cervical | ______ | Neck |
| T1T12 | ______ | 12 pairs | ______ |
| L1L5 | Lumbar | ______ | Lower back |
| S1S5 | ______ | 5 pairs | ______ |
| CO1 | Coccygeal | ______ | ______ |
The onset of menstruation in a human female is called ______.
The egg is passed down through the oviduct by muscular contractions.
Match Column I and Column II with respect to the menstrual cycle.
| Column I | Column II |
|---|---|
| i. Menstrual phase | c. Secretion of inhibin |
| ii. Follicular phase | b. Development of the primary follicle |
| iii. Ovulatory phase | a. Rapid secretion of LH |
| iv. Secretory phase | d. Secretion of estrogen |
Choose the correct option.
