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प्रश्न
What is menstrual cycle?
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उत्तर
The menstrual cycle is the cyclic change of the reproductive tract of a primate female. This period is marked by a characteristic event repeated almost every month (28 days with minor variation) in the form of a menstrual flow (i.e., shedding of the endometrium of the uterus with bleeding). Only during pregnancy does it temporarily cease.
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संबंधित प्रश्न
Describe the role of pituitary and ovarian hormones during the menstrual cycle in a human female.
Identify True/False statement. Correct false statement to make it true.
Menstrual cycle ceases during pregnancy.
Why is follicular phase in the menstrual cycle also referred as proliferative phase? Explain.
Explain menstrual cycle in human females.
Define the following term :
Ovulation
Choose the correct answer from the four options given below :
On which day of the menstrual cycle does ovulation take place ?
Explain the role of hormones during the menstrual cycle.
Multiple choice question.
Rupturing of follicles and discharge of ova is known as _______.
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.
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?
Answer the following type of question Assertion (A) and Reason (R).
(A) - Ovulation is the release of the ovum from the Graafian follicle.
(R) - It occurs during the follicular phase of the menstrual cycle.
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Name the ovarian hormone and the pituitary hormone that have caused the above-mentioned events.
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 |
In the absence of fertilization, corpus luteum ____________.
Immediately after ovulation, the mammalian egg is covered by a membrane known as ______.
The mammalian corpus luteum produces ______.
Secretion of progesterone by corpus luteum is initiated by ______.
Level of which hormones are at their highest during the luteal phase (second half of the cycle) of the menstrual cycle?
Corpus luteum ______.
Mature Graafian follicle is generally present in the ovary of a healthy human female around stet ______.
The endometrium in the female is the lining of ______.
The main function of mammalian corpus luteum is to produce ______.
The menstrual cycle begins with ______
Why are menstrual cycles absent during pregnancy?
Describe hormonal control in various phases of the menstrual cycle.
The figure show a section of human ovary. Select the option which gives the correct identification of either A or B with function/characteristic.
Write a short note on Secretory Phase.
The egg is passed down through the oviduct by muscular contractions.
Name the following:
Two layers of the wall of uterus.
