Which one of the following is true for menstrual cycle?

Proliferative phase: Rapid regeneration of myometrium and maturation of Graafian follicle

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Secretory phase: Development of corpus luteum and increase secretion of progesterone

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Menstruation: Breakdown of myometrium and ovum not fertilized

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Ovulation: LH and FSH attain peak level and sharp fall in the secretion of progesterone

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Solution

The correct option is B Secretory phase: Development of corpus luteum and increase secretion of progesterone
The menstrual cycle consists of four phases: menstrual phase, proliferative phase, ovulatory phase and secretory phase.

Menstruation: Breakdown of endometrium when the ovum is not fertilised.
Proliferative phase : Regeneration of endometrium and maturation of Graafian follicle.
Ovulation: LH and FSH attain peak level. Ovum is released from the Graafian follicles.
Secretory phase: Corpus luteum develops and secretion of progesterone increases.

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Similar questions

Q. Refer to the given schematic representation of menstrual cycle showing three phases I, II and Ill.

Select the option that correctly matches these phases with the following events.

(i) FSH secreted by the anterior pituitary stimulates the ovarian follicle to secrete estrogen which stimulates the proliferation of the endometrium.

(ii) LH secreted by the anterior pituitary stimulates the development of corpus luteum which secretes progesterone.

(iii) Reduced production of LH from anterior pituitary causes degeneration of corpus luteum, thereby progesterone production is reduced.

Q. Some important events that occur during the menstrual cycle are given below. Arrange the events in a proper sequence and select the correct option.
(i) Proliferation of endometrial wall
(ii) LH surge
(iii) Secretion of estrogen
(iv) Secretion of progesterone
(v) Ovulation
(vi) Growth of corpus luteum
(vi) Degeneration of corpus luteum
(vii) Menstruation

Q. Match column 1 to column 2:

	Column 1		Column 2
a	FSH	1	Prepare endometrium for implantation
b	LH	2	Develops female secondary sexual characters
c	Progesterone	3	Maturation of Graafian follicle
d	Estrogen	4	Development of corpus luteum

In menstrual cycle one ovum is released from either ovaries and the remaining graffian follicle converts into corpus luteum which will secret progesterone for only 7 days but if pregnancy occurs then it secret progesterone for 3 months , in this scenario how the corpus luteum will secret RELAXIN at the parturition at 9 month if it is already died and replaced by placenta?

Column I	Column II
(a) FSH	(i) Prepare endometrium for implantation
(b) LH	(ii) Develop female secondary sexual characters
(c) Progesterone	(iii) Contraction of uterine wall
(d) Estrogen	(iv) Development of corpus luteum
	(v) Maturation of Graafian follicle

Match the hormone in column I with their function in column II and choose the correct combination from the following.

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