MENSTRUAL CYCLE

Question 1

The reproductive cycle in which organisms is called menstrual cycle?

Answer 1

Female primates(apes, monkeys, humans)

Question 2

The 1st mesntruation begins at ________ and is called __________

Answer 2

puberty, menarche

Question 3

In ____________, menstruation is repeated at an avg. interval of 28/29 days

Answer 3

human females

Question 4

Menstrual cycle definition

Answer 4

Cycle of events starting from one menstruation till the next one

Question 5

When does Ovulation take place?

Answer 5

middle of each mesntrual cycle

Question 6

The cycle starts with ________ phase

Answer 6

menstrual phase

Question 7

Menstrual flow occurs and lasts for ________ days in menstrual phase

Answer 7

3-5

Question 8

What is the cause of menstrual flow?

Answer 8

Breakdown of edometrial lining of the uterus and blood vessels which form liquid that comes out through the vagina.

Question 9

Menstruation only occurs when released ovum gets fertilised.

True/false

Answer 9

False

not fertilised

Question 10

Lack of menstruation indicates ____________(3)

Answer 10

Pregnancy or stress or poor health

Question 11

The menstrual phase is followed by____________

Answer 11

follicular phase

Question 12

events of follicular phase (2)

Answer 12

1.Primary follicles in ovary grow to become fully mature Graafian follicles
2.Endometrium of uterus regenerates through proliferation

Question 13

Changes in the ovary and the uterus are induced by ___________

Answer 13

changes in the levels of pituitary and ovarian hormones

Question 14

The secretion of ____________ increases gradually during the follicular phase.

Answer 14

gonadotopins(LH and FSH)

Question 15

LH and FSH stimulate ________(2)

Answer 15

Follicular development
Secretion of estrogens by growing follicles.

Question 16

Both LH and FSH attain a peak level in ____________ of cycle, about ________ day

Answer 16

middle, 14th

Question 17

Rapid secretion of LH leading to its maximum level during the mid-cycle called ____________ induces ___________

Answer 17

LH surge, rupture of Graafian follicle and hence, release of ovum(Ovulation)

Question 18

Ovulation is also termed as ________ phase

Answer 18

ovulatory

Question 19

Ovulation is followed by __________

Answer 19

Luteal phase

Question 20

During luteal phase, what change takes place in Graafian follicle ?

Answer 20

transforms as corpus luteum

Question 21

Corpus luteum secretes some amount of progesterone which is essential for maintenance of myometrium.

True/false

Answer 21

False

large amounts, endometrium

Question 22

A well-maintained endometrium is necessary for _______________

Answer 22

implantation of fertilised ovum and other events of pregnancy

Question 23

During pregnancy , ____________ stops

Answer 23

All events of menstrual cycle

Question 24

In absence of fertilisation, ____________ degenerates which causes the disintegration of ________ leading to __________

Answer 24

Corpus luteum, endometrium, menstruation

Question 25

Disintegration of endometrium (menstruation) marks ___________

Answer 25

a new cycle

Question 26

Menstrual cycle ceases around ________ age termed as __________

Answer 26

50 years, menopause

Question 27

Cyclic menstruation is an indicator of _____________

Answer 27

normal reproductive phase

Question 28

Sanitary napkins or homemade pads must be changed after every ___________

Answer 28

4-5 hrs as per requirement