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प्रश्न
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.
उत्तर
- Phase C is the ovulation phase, while Phase D is the luteal phase.
- The Corpus Luteum is the structure identified with the label F. The Corpus Luteum produces progesterone, which promotes a healthy environment for the developing fetus.
- Progesterone levels are very low or negligible in phase C, while they are highest in phase D.
- The hormone present in the urine that confirms pregnancy in human beings is hCG [Human Chorionic Gonadotropin hormone].
- The structure labeled as 'E' is identified as a Graafian follicle, and the hormone released by it is estrogen.
APPEARS IN
संबंधित प्रश्न
The Graafian follicle, after ovulation turns into a hormone producing issue called Corpus callosum.
Give appropriate biological or technical terms for the following:
The onset of menstruation in a young girl
Corpus luteum develops under the influence of ______.
Level of which hormones are at their highest during the luteal phase (second half of the cycle) of the menstrual cycle?
Corpus luteum develops from ______.
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. |
Subject 2 has a higher level of hormone B, which is ______
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.
Name the following:
Two layers of the wall of uterus.
The onset of menstruation in women is called ______.
