Menstual Cycle

Question 1

What happens when FSH levels are too low?

Answer 1

Oestrogen levels also drop

Question 2

High levels of progesterone inhibits:

Answer 2

FSH and LH

Question 3

High level or oestrogen inhibits;

Answer 3

FSH

Question 4

If progesterone levels drop then what will occur?

Answer 4

The endometrium will fall away

Question 5

Name the hormone that is secreted by the corpus luteum:

Answer 5

Progesterone

Question 6

What indicates that pregnancy has no occured?

Answer 6

The corpus luteum degenerates

Question 7

Function of LH:

Answer 7

It acts upon the Graafian follicle to mature it

Question 8

What hormone is secreted by the Graafian follicle?

Answer 8

Oestrogen

Question 9

FSH:

Answer 9

Stimulates the growth of a follicle into the Graafian follicle

Question 10

Which TWO hormones does the pituitary gland secrete for the menstrual cycle?

Answer 10

1. FSH
2. LH

Question 11

On which day of the menstrual cycle does ovulation typically occur?

Answer 11

14

Question 12

Ovulation:

Answer 12

The release of an ovum into the fallopian tubes

Question 13

What causes ovulation to occur?

Answer 13

FSH and LH

Question 14

The ovarian cycle refers to the changes in the:

Answer 14

Ovaries

Question 15

The menstrual cycle starts when:

Answer 15

• Pituitary gland secretes LH
• Matures Graafian follicle

Question 16

Menstrual cycle:

Answer 16

When: 28 day cycle
Where: ovaries and uterus
Why: to produce a mature ovum and prepare the uterus for possible implantation

Question 17

Ovarian cycle steps:

Answer 17

• pituitary gland secretes FSH(stimulates Graafian follicle)
• follicle produces oestrogen causing endometrium to thicken/repair
• pituitary gland secretes LH
• FSH and LH mature Graafian follicle
• ovulation occurs
• Corpus Luteum remains and secretes progesterone which is sent to the endometrium

Question 18

Uterine cycle steps:

Answer 18

• oestrogen from follicle repairs and thickens endometrium
• ovulation occurs
• progesterone make the endometrium thicker and more vascular
• oestrogen and progesterone inhibit the secretion of FSH and LH
• if pregnancy does not occur, corpus luteum shrinks
• progesterone levels drop as well as oestrogen levels
• endometrium falls away
• FSH is no longer inhibited and rises