Oogenesis, Uterine and Ovarian Cycle

Question 1

_____ is ovam production, beginning at birth and ending at menopause

Answer 1

Oogenesis

Question 2

_____ are stem cells in females that complete division between 3rd and 7th month of fetus development

Answer 2

Oogonia

Question 3

Oogonia produce daughter cells called?

Answer 3

primary oocytes

Question 4

Primary ooctyes only proceed to prophase of Meiosis 1 and then halts until

Answer 4

a female reaches puberty

Question 5

When a female reaches puberty, what hormone triggers the Ovarian Cycle to begin?

Answer 5

FSH

Question 6

Each female is born with ______ follicles, by puberty they have _______ follicles

Answer 6

2 million, 400,00

Question 7

Eggs degenerating or atresia happens at?

Answer 7

menopause

Question 8

The Ovarian Cycle has 2 phases

Answer 8

Follicular Phase (preovulatory)
Luteal Phase (postovulatory)

Question 9

The Ovarian Cycle has how many steps?

Answer 9

6

Question 10

FSH stimulates primordial follicles, causing it to develop into primary follicles

Answer 10

1) Formation of Primary Follicles

Question 11

Follicle wall thickens and follicular fluid is produced causing expansion and division of inner and outer layer of follicles

Answer 11

2) Formation of Secondary Follicles

Question 12

This occurs between day 10-14 of cycle. LH levels begin to increase, causing oocyte (secondary ooctye) to complete meiosis 1 and stops after metaphase of meiosis 2

Answer 12

3) Formation of Tertiary Follicle

Question 13

Tertiary follicle releases secondary oocyte to be released from ovary and into uterine tube

Answer 13

4) Ovulation

Question 14

The now empty tertiary follicle creates the corpus luteum due to increase in LH, the corpus luteum produces hormones called progestins which prepares uterine wall for pregnancy

Answer 14

5) Formation of the Corpus Luteum

Question 15

12 days after ovulation, if fertilization did not occur, progesteron and estrogen levels decrease amd fibroblasts destroy corpus luteum leaving scar tissue called corpus albicans. The End of the ovarian cycle

Answer 15

6) Degeneration of Corpus Luteum

Question 16

The Uterine Cycle

Answer 16

series of repeated changes to endometrium every 28 days

Includes Menses, Proliferative Phase, and Secretory Phase

Question 17

the functional zone is degenerated, “spiral arteries” constict which reduces bloodflow to the area causing reduction of oxygen and nutrients. Arteries finally rupture and dying tissue sloughed off. Lasts 1-7 days.

Answer 17

Menses

Question 18

epithelial cells of the basilar zone starts to restore the function zone

Answer 18

Proliferative

Question 19

the endometrial glands enlarge and accelerate secretion and growth. “spiral arteries” grown and spiral though the functional zone. This phase lasts as long as corpus luteum

Answer 19

Secretory phase