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प्रश्न
Name the function of the following:
Corpus luteum
State the main function of the corpus luteum.
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उत्तर
It secretes progesterone, a hormone that prepares the uterus for implantation. If implantation fails, the corpus luteum goes inactive and degenerates. If an embryo is implanted, the corpus luteum continues to release progesterone until the fourth month of pregnancy, when the placenta takes over this function.
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संबंधित प्रश्न
Describe the role of pituitary and ovarian hormones during the menstrual cycle in a human female.
Which hormones regulate menstrual cycle?
Identify True/False statement. Correct false statement to make it true.
Menstrual cycle ceases during pregnancy.
Draw a graafian follicle and label antrum and secondary oocyte.
Uterus, Parturition, Fertilisation, Gestation, Implantation.
the Biological/technical term for Complete stoppage of menstrual cycle in females
Give a significant point of difference between the oestrous and menstrual cycles.
Explain the changes that occur in the ovary and uterus during menstrual cycle in human females. Mention the influence of pituitary and ovarian hormones in bringing these changes.
Write the answers to the following questions by observing the figure below.
- What does the figure above show?
- Which organs are involved in this process?
- Which hormones are involved in this process?
- After how many days do these changes happen again?
- Explain your opinion about the statement that a woman's body is impure while the above process is going on.
Explain the importance of cleanliness during the time of menstrual cycle in girls.
Why menstrual cycle does not take place before puberty and during pregnancy?
Read the following passage and answer the question that follows:
Rahini and her parents were watching a television program. An advertisement flashed on the screen which was promoting the use of sanitary napkins. Rahini’s parents suddenly changed the channel, but she objected to her parents and explained the need and importance of such an advertisement.
List out the napkin hygiene measures taken during menstruation?
Find the wrongly matched pair.
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Explain the changes that occur in the uterus simultaneously in anticipation.
Lack of which hormone results in menstrual flow?
Identify the phase of the menstrual cycle during which there is a peak in the level of progesterone.
In the absence of fertilization, corpus luteum ____________.
Choose the correct order of phases of the menstrual cycle.
The temporary endocrine gland in humans is ______.
____________ is transformed to corpus luteum during luteal phase of the menstrual cycle.
Luteal phase is also known as ____________.
Corpus luteum develops under the influence of ______.
Immediately after ovulation, the mammalian egg is covered by a membrane known as ______.
Mainly which type of hormones control the menstrual cycle in human beings?
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. |
The peak observed in Subject 1 and 2 is due to ______
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. |
For subject 2 it is observed that the peak for hormone B has reached the plateau stage. After approximately how much time will the curve for hormone B descend?
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 normally occurs once in ______.
When does the corpus luteum degenerate?
Menstruation is triggered by an abrupt decline in the amount of ______.
The growth of corpus luteum is initiated by:
At which stage of the menstrual cycle, both LH and FSH are high?
Why are menstrual cycles absent during pregnancy?
Describe hormonal control in various phases of the menstrual cycle.
The onset of menstruation in a human female is called ______.
Name these:
4 phases of the menstrual cycle.
Complete the following table by writing the name of the structure or the function of the given structure:
| Structure | Function | ||
| 1. | Corpus luteum | 1. | ______ |
| 2. | ______ | 2. | Produces male gametes in mass |
| 3. | Leydig cells | 3. | ______ |
| 4. | ______ | 4. | Stores the sperms until they mature and become mobile |
| 5. | Umbilical cord | 5. | ______ |
| 6. | Fallopian tube | 6. | ______ |
