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प्रश्न
Differentiate between the following pair:
Menarche and menopause
Differentiate between menarche and menopause.
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उत्तर
| Sr. No. | Menarche | Menopause |
| 1. | Menarche is the first occurrence of menstruation in a human female during puberty. | Menopause is the permanent cessation or disappearance of menstrual cycles in a woman. |
| 2. | It generally occurs at a young age, typically between 11 and 13 years. | It usually occurs in older women, typically between the ages of 45 and 55 years. |
| 3. | It signifies the beginning of the reproductive phase and the ability to conceive. | It signifies the end of the reproductive phase, as ovulation and menstruation stop permanently. |
| 4. | This process is triggered by the initial rise in female sex hormones like estrogen. | This process is caused by the gradual decline and eventual stop of female sex hormone production. |
संबंधित प्रश्न
Why is follicular phase in the menstrual cycle also referred as proliferative phase? Explain.
Give a significant point of difference between the oestrous and menstrual cycles.
How many pairs of testis are present in human male?
Explain the importance of cleanliness during the time of menstrual cycle in girls.
Painful menstruation is termed as ____________.
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.
Expand the acronym.
FSH
Identify the phase of the menstrual cycle during which there is a peak in the level of progesterone.
Level of which hormones are at their highest during the luteal phase (second half of the cycle) of the menstrual cycle?
Which one of the following events is correctly matched with the time period in a normal menstrual cycle?
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. |
If the peak of Hormone A does not appear in the study for Subject 1, which of the following statement is true?
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?
In case the ova does not fertilize, which of the following events will take place?
Exit from the cell cycle and remain dormant for long time by a cell is represented by one of the following phases of the cell cycle:
Menstruation is triggered by an abrupt decline in the amount of ______.
The secretory phase in the human menstrual cycle is also called:
After ovulation the collapsed ovarian follicle shrinks and becomes filled with cell to form:
Describe hormonal control in various phases of the menstrual cycle.
Complete the table:
| Number | Type | No. of pairs | Region |
| C1C8 | Cervical | ______ | Neck |
| T1T12 | ______ | 12 pairs | ______ |
| L1L5 | Lumbar | ______ | Lower back |
| S1S5 | ______ | 5 pairs | ______ |
| CO1 | Coccygeal | ______ | ______ |
How many phases does the menstrual cycle consist of?
