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प्रश्न
Give a reason for the following:
The second half of the menstrual cycle is called the luteal phase as well as the secretory phase.
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उत्तर
The luteal phase refers to the second half of the menstrual cycle, which is when the corpus luteum produces progesterone. It is sometimes referred to as the secretory phase because the endometrial glands become more active in secreting chemicals to assist a possible pregnancy.
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संबंधित प्रश्न
During which phase of the menstrual cycle does the endometrium thicken up to 8-10 mm?
In the human female, menstruation can be deferred by the administration of ______.
Corpus luteum ______.
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?
The Corpus luteum grows during menstruation.
When does the corpus luteum degenerate?
In the figure given below, parts A and B show the level of hormones which influence the menstrual cycle. Study the figure and answer the questions that follow:
- Name the organs which secrete the hormones represented in parts A and B.
- State the impact of the hormones in part B on the uterus of the human female during 6 to 15 days of the menstrual cycle.
Choose the odd one out from the following terms and name the category to which the others belong:
In the human menstrual cycle, the ovulation occurs around ______.
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.
