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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.
APPEARS IN
संबंधित प्रश्न
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.
Complete the following by filling in the blanks 1 to 5 with appropriate words:
The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ______ (1). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called the ______ (2) follicle. The process of releasing the egg from the ovary is called ______ (3). The ovum is picked up by the oviducal funnel and fertilization takes place in the ______ (4). In about a weak the blastocyst gets fixed in the endometrium of the uterus and this process is called ______ (5).
What is menstrual cycle? Describe it in brief.
Define: Menarche
Give Reasons
Missing of menses is the first indication of pregnancy.
Name the Following
The onset of menstruation in a young girl at about the age of 13 years.
Complete the following sentences with appropriate word:
The human gestation period is about ____________.
How many pairs of testis are present in human male?
Which one of the following menstrual irregularities is correctly matched?
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 life of corpus luteum is generally about ______ days in the absence of pregnancy
If the corpus luteum is present in the ovary even after 72 hours after ovulationit indicates that ______.
Menstruation begins due to ______.
Choose the correct order of phases of the menstrual cycle.
____________ is transformed to corpus luteum during luteal phase of the menstrual cycle.
Corpus luteum produces ______.
Which one of the following is the correct matching of the events occurring during menstrual cycle?
Level of which hormones are at their highest during the luteal phase (second half of the cycle) of the menstrual cycle?
Which one of the following statements is incorrect about menstruation?
A human female reaches menopause aroung the age of ______.
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 ______
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?
When does the corpus luteum degenerate?
The secretory phase in the human menstrual cycle is also called:
About which day in a normal human menstrual cycle does rapid secretion of LH (Popularly called LH Surge) normally occurs?
Mention the importance of LH surge during menstrual cycle.
Longest phase of menstrual cycle is ______.
How many phases does the menstrual cycle consist of?
