Repro System Physiology 1

Question 1

What hormone will induce and maintain spermatogenesis?

Answer 1

FSH

Question 2

What hormone promotes synthesis of testosterone from the leydig cells in testes?

Answer 2

LH

Question 3

What substance will increase weight of testes?

Answer 3

FSH

Question 4

What substance will stimulate sertoli cells?

Answer 4

FSH

Question 5

What substance stimulates final maturation of the follicle?

Answer 5

LSH

Question 6

What substance stimulates growth and initial maturation of ovarian follicle?

Answer 6

LH

Question 7

What substance prepares follicle for action of LH?

Answer 7

FSH

Question 8

What substance released from mature follicles inhibits FSH?

Answer 8

Estrogens. Because of the negative feedback loop.

Question 9

What substance released after ovulation inhibits FSH?

Answer 9

Progesterone. Because of the negative feedback loop.

Question 10

What substance stimulates ovulation?

Answer 10

LH

Question 11

LH is responsible for the formation of what tissue?

Answer 11

The corpus luteum

Question 12

What 2 hormones is LH responsible for producing via its stimulation of corpus luteum growth?

Answer 12

Estrogen

Progesterone

Question 13

What is the major androgen?

Answer 13

Testosterone

Question 14

Where is testosterone produced?

Answer 14

Leydig cells

Question 15

How does increased levels of testosterone affect spermatogenesis?

Answer 15

It will decrease it due to inhibition of FSH

Question 16

How is testosterone excreted?

Answer 16

In the bile and urine

Question 17

What affect does testosterone have on sperm ducts and glands?

Answer 17

It is responsible for their maintenance and development

Question 18

What hormone controls testosterone?

Answer 18

LH

Question 19

What affect does testosterone have on libido?

Answer 19

Increases it

Question 20

What is the composition of semen?

Answer 20

Sperm

Fructose

Prostaglandins

Alkaline fluid

Question 21

Where is estrogen secreted from in non-pregnant women?

Answer 21

Corpus luteum

Follicle

Question 22

Where is estrogen secreted from in pregnant women?

Answer 22

Placenta

Question 23

What is the primary circulating form of estrogen?

Answer 23

Estradiol

Question 24

How is estrogen excreted?

Answer 24

Excreted in the liver after conjugation in the liver

Question 25

Proliferation and growth of reproductive tissues and secondary sexual characteristics is the function of what hormone?

Answer 25

Estrogen

Question 26

What hormone will increase follicle growth?

Answer 26

Estrogen

Question 27

What hormone will increase ovarian tube motility?

Answer 27

Estrogen

Question 28

What hormone will inhibit secretory endometrium?

Answer 28

Progesterone

Question 29

What effect does estrogen have on the endometrium?

Answer 29

Causes it to proliferate

Question 30

What effect does estrogen have on breast tissue?

Answer 30

Causes development of ducts

Question 31

What effect does progesterone have on breast tissue?

Answer 31

It causes development of the glands

Question 32

What hormone peaks before ovulation?

Answer 32

Estrogen

Question 33

What hormone peaks after ovulation?

Answer 33

Progesterone

Question 34

The developing follicle secretes what hormone?

Answer 34

Estrogen

Question 35

The corpus luteum secretes what hormones?

Answer 35

Progesterone and estrogen

Question 36

What hormone surges during the proliferative phase?

Answer 36

Estrogen

Question 37

What hormone surges during the secretory phase?

Answer 37

Progesterone

Question 38

Where does fertilization most often occur?

Answer 38

In the ampulla

Question 39

What hormone stimulates the corpus luteum to still produce estrogen and progesterone?

Answer 39

Human Chorionic Gonadotropin (HCG)

Question 40

What hormone causes male fetus to secrete testosterone?

Answer 40

HCG

Question 41

Why do estrogen and progesterone levels drop in menopause?

Answer 41

No follicles left to stimulate their production

Question 42

What two hormones are left unopposed in menopause?

Answer 42

FSH and LH