1.3.2 Histology and Physiology of Ovaries

Question 1

What is folliculogenesis?

Answer 1

The growth and development of immature follicles and oocytes to mature follicles and ova capable of undergoing ovulation and fertilization

Question 2

What is in the medulla of the ovary?

Answer 2

Vasculature

Lymphatics

Nerves

Question 3

What are the covered part?

Answer 3

Question 4

Following ovulation what is on of the main products of the corpus luteum?

Answer 4

Progesterone - important for preparation of the uterus for possible implantation

Question 5

What are the basic events that lead to ovulation?

Answer 5

Increasing pressure and proteolytic activity leads to oocyte release

Question 6

What is this an image of?

Answer 6

Graffian follicle

Question 7

The granulosa helps produces?

Answer 7

Contains aromatase which will convert androgen to estrogen

Question 8

What happens before ovulation?

Answer 8

Increasing estrogen which leads to an ovulatory surge of LH (HUUUUUGELY HIGH YIELD)

Question 9

Describe the length of each stage of follicular growth

Answer 9

Question 10

What happens to the number of oocytes during development?

Answer 10

There is a large surge of the number, then a large amount of them die

Question 11

What are some of the events that occur during ovulation?

Answer 11

Question 12

What is the epithelium of the ovary?

Answer 12

Simple cuboidal

Question 13

What are the covered parts?

Answer 13

Question 14

What is the tunica albuginia?

Answer 14

Dense connective tissue layer - important in allowing the egg to leave

Question 15

What is the function of the ovary?

Answer 15

To produce female germ cells and to synthesize and secrete steroid and peptide hormones

Question 16

What are the covered parts?

Answer 16

Question 17

What is the function of the theca interna cells?

Answer 17

Androgen production

Question 18

What is the biological checkpoint that occurs for primordial follicle entry into the growing pool?

Answer 18

Question 19

Oocyte complement is established when?

Answer 19

Established during the development of the ovary

Primordial germ cells migrate from yolk sac to gonadal ridge

Question 20

What is the corpus albicans?

Answer 20

The remnants of a corpus luteum

Question 21

What is this an image of and what are the arrows pointing at?

Answer 21

Question 22

What is this an image of?

Answer 22

Question 23

What is this an image of?

Answer 23

Question 24

What is in the cortex?

Answer 24

Follicles containing oocytes at multiple stages of development

Corpora lutea at various stages of function and regression

Question 25

What is this an image of and what is happening?

Answer 25

Antral follicle Follicular fluid Theca differentiates - externa and interna Granulosa continues to proliferate Increasing estradiol production

Question 26

What is this an image of and what are the covered parts?

Answer 26

Preantral follicle Left to right theca LH receptors blood supply granulosa FSH receptors

Question 27

What is this an image of?

Answer 27

Corpus leutum

Question 28

What is this an image of?

Answer 28

Preantral follicle Top to bottom Granulosa layer Basement membrane Zona pellucida Oocyte

Question 29

What phase are primordial follicles arrested in?

Answer 29

Meiosis I

Question 30

What is atresia?

Answer 30

Degeneration/death of the follicle and oocyte