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प्रश्न
Identify True/False statement. Correct false statement to make it true.
Menstrual cycle ceases during pregnancy.
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उत्तर
This statement is true.
APPEARS IN
संबंधित प्रश्न
Describe the role of pituitary and ovarian hormones during the menstrual cycle in a human female.
Name the function of the following:
Corpus luteum
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).
Explain the ovarian and uterine events that occur during a menstrual cycle in a human female under the influence of pituitary and ovarian hormones respectively.
Sketch the labeled diagram:
Menstrual cycle
Explain the role of hormones during the menstrual cycle.
Give Reasons
The chances of pregnancy to occur are most favourable on or about the 14th day of the menstrual cycle. Explain.
State the names of four hormones which control menstrual cycle.
Explain the importance of cleanliness during the time of menstrual cycle in girls.
Find the wrongly matched pair.
Calculate the number of spermatozoa produced by a single primary spermatocyte.
In the absence of fertilization, corpus luteum ____________.
____________ is transformed to corpus luteum during luteal phase of the menstrual cycle.
Calculate the expected date of ovulation, if in a normal menstruating woman, gets her menses on 5th April.
Identify the INCORRECT statement.
Corpus luteum produces ______.
Which set is similar?
Mature Graafian follicle is generally present in the ovary of a healthy human female around stet ______.
To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.

The peak observed in Subject 1 and 2 is due to ______
Menstruation is triggered by an abrupt decline in the amount of ______.
At which stage of the menstrual cycle, both LH and FSH are high?
The level of progesterone is high at which phase in the menstrual cycle?
Why are menstrual cycles absent during pregnancy?
What role does pituitary gonadotropins play during follicular and ovulatory phases of menstrual cycle? Explain the shifts in steroidal secretions.
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:
The permanent stoppage of menstruation in human females around the age of 45 years.
The onset of menstruation in a human female is called ______.
Name these:
4 phases of the menstrual cycle.
The first menstruation is called ______.
