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प्रश्न
Briefly describe the secretory phase of the menstrual cycle.
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उत्तर
Secretory phase begins after ovulation. Corpus luteum the remnants of graafian follicle under influence of LH secretes hormones namely progestrone and estrogen. Both LH and progestrone help in further growth and thickening of endometrium and its gland become secretory endometriums fully ready for the attachment and nourishment of blastocyst. In case high presence of progestrone reduce the level of LH and FSH which result in reduced synthesis of progestrone. Endometrium breakdown and moves out in the form of mucus and blood. Corpus luteum degenerate into white body called corpus albicans.
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संबंधित 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.
Complete the following sentences with appropriate word:
The human gestation period is about ____________.
Lack of which hormone results in menstrual flow?
When does the following step take place?
The level of progesterone is high at which phase in the menstrual cycle?
What role does pituitary gonadotropins play during follicular and ovulatory phases of menstrual cycle? Explain the shifts in steroidal secretions.
The figure show a section of human ovary. Select the option which gives the correct identification of either A or B with function/characteristic.
Which of the following statement is correct?
In the human menstrual cycle, the ovulation occurs around ______.
Given below is a group of terms. In the group, one pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Follicular phase: 5-12 days:: Luteal phase : ______ days.
