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प्रश्न
Explain the menstruation phases in the menstrual cycle of a human female.
स्पष्ट करा
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उत्तर
- During menstruation, the uterine lining, known as the endometrium, sheds along with blood vessels and tissue debris.
- If fertilization does not occur, this process is started by a reduction in estrogen and progesterone.
- Menstruation is the start of the menstrual cycle and usually lasts 3-7 day.
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2023-2024 (March) Outside Delhi Set - 2
संबंधित प्रश्न
Define Amenorrhea
Explain menstrual cycle in human females.
Explain the ovarian cycle with its different phases.
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 |
Which one of the following events is correctly matched with the time period in a normal menstrual cycle?
The secretory phase in the human menstrual cycle is also called:
The menstrual cycle begins with ______
Which of the following statement is correct?
Given below is the diagram depicting the menstrual cycle in human beings. Study it carefully and answer the questions that follow.
- Which phases are indicated by ‘C’ and ‘D’?
- Name the structures labelled ‘F’. What is its role?
- Explain the changes in the level of progesterone during phases ‘C’ and ‘D’.
- Which hormone present in the urine confirms pregnancy in human beings?
- Identify the structure labelled ‘E’. Name the hormone released by it.
