Reproductive System Lecture 3 (Female)

Question 1

Name the 2 key functions of the ovaries

Answer 1

1. produce oocytes
2. produce reproductive hormones (estradiol, progesterone)

Question 2

Progestins, androgens and estrogens are produced in the ____ ______

Answer 2

ovarian follicle

Question 3

What are the three types of steroid hormones produced in the ovarian follicle

Answer 3

1. Progestins
2. Androgens
3. Estrogens

Question 4

Explain the purpose of Progestins

Answer 4

an important product of the corpus lute during the luteal phase of the menstrual cycle and for the maintenance of pregnancy

Question 5

Androgens are an important precursor for the synthesis of _____

Answer 5

estradiol

Question 6

Too much testosterone is associted with follicular ____

Answer 6

Atresia

Question 7

Estrogen is essential for stimulation of

Answer 7

follicular development

Question 8

Name the anterior pituitary hormones

Answer 8

1. FSH
2. LH

Question 9

FSH and LH are secreted by the

Answer 9

Hypothalamus

Question 10

What is the functions of FSH in female reproductive system

Answer 10

Stimulates ovarian follicles to grow and produce estradiol

Question 11

What are the functions of LH on the female reproductive system?

Answer 11

Stimulates testosterone production
stimulates ovulation, secretion of steroid hormones

Question 12

What is a primordial follicle

Answer 12

oocyte +. a single layer of flattened granulosa cells

Question 13

By 6 months of age, ovary has full complement of primordial follicles. At birth, a female is born with 2 million oocytes that are gradually lost by degeneration.
True or False

Answer 13

True

Question 14

At what stage are oocytes arrested?

Question 15

What triggers the resumption of meiosis the first time?

Question 16

What is the fate of most primary oocytes?

Question 17

What are the female gonads?

Answer 17

Ovaries

Question 18

Ovaries produce gamates and the sex hormones _____ and ______

Answer 18

estrogen and progesterone

Question 19

The female accessory ducts from the ovaries to the body exterior are

Answer 19

the uterine tubes
the uterus
the vagina

Question 20

The female accessory ducts transport or serve the needs of t

Question 21

reproductive cells and developing

Answer 21

fetus

Question 22

The external sex organs are referred to as

Answer 22

external genitalia

Question 23

What is Oogenesis

Answer 23

The sequence of events that leads to the formation of ova

Question 24

The oogonia transform into primary oocytes that begin the first meiotic division, but there are three main differences between oogenesis and spermatogenesis. What are they

Answer 24

1. the production of promary oocytes occurs only in the fetus
2. In primary oocytes, meiosis is arrested in late prohhase 1 and resumes only years later
3. In secondary oocytes meiosis is arrected in metaphase II and is only completed if fertilzation occurs

Question 25

At birth, a female is presumednto have her lifetime supply of primary oocyte TRUE OR FALSE

Answer 25

True

Question 26

Of the 2 million oocytes present at birth only about 400 000 oocytes remain at puberty True or False

Answer 26

True

Question 27

What is an ovarian follicle

Answer 27

functional unit of the ovary. provides an environment where the developing oocyte and its surrounding cells can communicate

Question 28

Describe a Primordial Follicle

Answer 28

a singular layer of squamous pregranulosa cells surrounding a primary oocyte. These are the first to develop in the fetus

Question 29

Describe Primary Follicle

Answer 29

A singular layer of cuboidal pregranulosa cells surrounding a primary oocyte

Question 30

Describe secondary follicle

Answer 30

multiple layers of cuboidal granulosa cells surrounding primary oocyte

Question 31

Describe secondary follicles

Answer 31

multiple layers of cuboidal granulosa surrounding a primary oocyte

Question 32

Describe vesicular follicles

Answer 32

the fluid-filled cavity where the primary oocyte resumes meiosis and becomes a secondary oocyte.

Question 33

A follicle has one of two fates:

Answer 33

1. Atresia 2. Ovulation

Question 34

What is atresia?

Answer 34

The programmed cell death of an oocyte This is the fate of 99% of all follicles.

Question 35

What is Ovulation

Answer 35

after puberty, high levels of hormones rescue recruited follicles each month from atresia. Typically only the dominant follicle will continue to