Lecture 50 Female Reproductive Function

Question 1

When in a woman’s life is the primary oocyte produced?

Answer 1

Before birth

Question 2

What is the name of the progenitor cells of the oocytes?l

Answer 2

Oogonia

Question 3

When in a woman’s life are secondary oocytes produced?

Answer 3

Puberty

Question 4

Genetically, what is different about oocytes and other gametes

Answer 4

It has double the genetic material 46 chromosomes

Question 5

What is the additional genetic material in the secondary oocyte held in?

Answer 5

Polar bodies

Question 6

Name the 2 phases of the ovarian cycle

Answer 6

Follicular phase

Luteal phase

Question 7

What are primary oocytes stored in?

Answer 7

Follicles (follicular cells)

Question 8

What cells are the zona pellucida formed by…

Answer 8

Granulosa cells

Question 9

What is the name of the cavity formed when the primordial follicle enlarges

Answer 9

Antrum

Question 10

What is the name of the singular follicle which remains after follicular cell enlargement?

Answer 10

Graafin follicle

Question 11

At the end of the follicular phase, what causes the rupture of the follicle?

Answer 11

Fluid accumulation, releasing the secondary oocyte

Question 12

What days does the luteal phase occur?

Answer 12

Day 14 - 28 of the ovarian cycle

Question 13

Corpus haemorrhagicum is what.. and what can it lead to?

Answer 13

The follicle filling with blood

Can lead to irritation and pain.

Question 14

What is the name of the of the area formed by swelling of theca and granulosa cells, containing fat and blood vessels

Answer 14

Corpus luteum

Question 15

What hormone is released by the corpus luteum? And what effect does it have

Answer 15

Progesterone

Prevent uterine wall breakdown

Question 16

What happens when the corpus luteum goes through the preplanned artesia?

Answer 16

There is no more progesterone released, breakdown of the stratum functionalis

Question 17

Describe the hormonal sequence which leads to the production Of a primordial follicle

Answer 17

Hypothalamus- GnRH - gonadotropin releasing hormone

Anterior pituitary- LH and FSH

Production of an egg

Question 18

What is the function of luteninizing hormone?

Answer 18

Stimulates ovulation.

Question 19

What causes the negative feedback which prevents release of GnRH

Answer 19

Corpus luteum, release of progesterone and oestrogen

Question 20

Name the 2 layers of the uterine wall

Answer 20

Stratum basale- not shed, supplied by basilar arteries

Stratum functionalis- shed away when corpus luteum stops

Question 21

What is the function of oestrogen?

Answer 21

Thickens walls, and PROLIFERATES-

Question 22

Name the follicle which is allowed to continue to become a secondary oocyte

Answer 22

Graafin follicle

Question 23

What forms tubular glands?

Answer 23

Oestrogen

Question 24

What is found in the tubular glands of the uterus which is beneficial for a potential embryo?

Answer 24

Glycogen

Question 25

What causes the breakdown of the stratum functionalis

Answer 25

Artesia of the corpus luteum

Leads to ↓ in progesterone

Leads to ischemia and infarction of stratum functionalis (endometrium)

Menstruation