Advertisements
Advertisements
प्रश्न
Define: Menarche
Advertisements
उत्तर
It is the stage when a girl menstruates for the first time.
APPEARS IN
संबंधित प्रश्न
Name and explain the role of the inner and middle walls of the human uterus.
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?
In the absence of fertilization, 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?
Hormones responsible for menstrual cycle are produced from ______.
Which of the following events is not associated with ovulation in human females?
The level of progesterone is high at which phase in the menstrual cycle?
What role does pituitary gonadotropins play during follicular and ovulatory phases of menstrual cycle? Explain the shifts in steroidal secretions.
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.
