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प्रश्न
Observe the figure and answer the questions given below.
a) What does the above figure indicate?
b) Which human organs are involved in this process?
c) Name the hormones responsible for this process.
d) After how many days these repetitive changes take place?
e) ‚A woman should stay away from others, as her body is impure during this process.‛ What is your opinion about this statement? Elaborate it.
उत्तर
a) The figure indicates Menstrual Cycle.
b) Pituitary gland of brain, ovary and uterus are involved in this process.
c) The hormones responsible for this process are follicle stimulating hormone (FSH), luteinizing hormone (LH), estrogen and progesterone.
d) These repetitive changes take place at the interval of 28 to 30 days.
e) Menstrual cycle is a natural process that is a sign of the new creation, a very necessary and useful process. During the period of time, the woman's body is clean like the other days, so she does not need to stay away from others. It is essential to destroy such superstitions.
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संबंधित प्रश्न
Describe the role of pituitary and ovarian hormones during the menstrual cycle in a human female.
Explain the events that occur in a graafian follicle at the time of ovulation and thereafter.
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.
Follicle stimulating hormone : Development of oocyte : : Luteinizing hormone : ____________
Which one of the following events occurs during the secretory phase of the menstrual cycle?
Which hormone is secreted by the developing secondary follicles?
Secretion of progesterone by corpus luteum is initiated by ______.
Which set is similar?
Menstruation is triggered by a sudden decline in the amount of hormone secreted by corpus luteum. Identify the hormone.
Which one of the following statements is incorrect about menstruation?
Which one of the following events is correctly matched with the time period in a normal menstrual cycle?
The main function of mammalian corpus luteum is to produce ______.
About which day in a normal human menstrual cycle does rapid secretion of LH (Popularly called LH Surge) normally occurs?
Identify the correct statement from the following:
Mention the importance of LH surge during menstrual cycle.
What role does pituitary gonadotropins play during follicular and ovulatory phases of menstrual cycle? Explain the shifts in steroidal secretions.
Observe the figure and label it properly.
- Name the hormone that regulates the cycle.
- Name the phases in this cycle.
- What is the duration of ovulation phase?
- What happens if implantation occurs?
- What happens if implantation does not occur?
The onset of menstruation in a human female is called ______.
Name these:
4 phases of the menstrual cycle.
