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Part 1 > Repro System Physiology 1 > Flashcards

Repro System Physiology 1 Flashcards

1
Q

What hormone will induce and maintain spermatogenesis?

A

FSH

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2
Q

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

A

LH

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3
Q

What substance will increase weight of testes?

A

FSH

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4
Q

What substance will stimulate sertoli cells?

A

FSH

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5
Q

What substance stimulates final maturation of the follicle?

A

LSH

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6
Q

What substance stimulates growth and initial maturation of ovarian follicle?

A

LH

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7
Q

What substance prepares follicle for action of LH?

A

FSH

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8
Q

What substance released from mature follicles inhibits FSH?

A

Estrogens. Because of the negative feedback loop.

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9
Q

What substance released after ovulation inhibits FSH?

A

Progesterone. Because of the negative feedback loop.

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10
Q

What substance stimulates ovulation?

A

LH

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11
Q

LH is responsible for the formation of what tissue?

A

The corpus luteum

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12
Q

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

A

Estrogen

Progesterone

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13
Q

What is the major androgen?

A

Testosterone

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14
Q

Where is testosterone produced?

A

Leydig cells

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15
Q

How does increased levels of testosterone affect spermatogenesis?

A

It will decrease it due to inhibition of FSH

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16
Q

How is testosterone excreted?

A

In the bile and urine

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17
Q

What affect does testosterone have on sperm ducts and glands?

A

It is responsible for their maintenance and development

18
Q

What hormone controls testosterone?

A

LH

19
Q

What affect does testosterone have on libido?

A

Increases it

20
Q

What is the composition of semen?

A

Sperm

Fructose

Prostaglandins

Alkaline fluid

21
Q

Where is estrogen secreted from in non-pregnant women?

A

Corpus luteum

Follicle

22
Q

Where is estrogen secreted from in pregnant women?

A

Placenta

23
Q

What is the primary circulating form of estrogen?

A

Estradiol

24
Q

How is estrogen excreted?

A

Excreted in the liver after conjugation in the liver

25
Q

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

A

Estrogen

26
Q

What hormone will increase follicle growth?

A

Estrogen

27
Q

What hormone will increase ovarian tube motility?

A

Estrogen

28
Q

What hormone will inhibit secretory endometrium?

A

Progesterone

29
Q

What effect does estrogen have on the endometrium?

A

Causes it to proliferate

30
Q

What effect does estrogen have on breast tissue?

A

Causes development of ducts

31
Q

What effect does progesterone have on breast tissue?

A

It causes development of the glands

32
Q

What hormone peaks before ovulation?

A

Estrogen

33
Q

What hormone peaks after ovulation?

A

Progesterone

34
Q

The developing follicle secretes what hormone?

A

Estrogen

35
Q

The corpus luteum secretes what hormones?

A

Progesterone and estrogen

36
Q

What hormone surges during the proliferative phase?

A

Estrogen

37
Q

What hormone surges during the secretory phase?

A

Progesterone

38
Q

Where does fertilization most often occur?

A

In the ampulla

39
Q

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

A

Human Chorionic Gonadotropin (HCG)

40
Q

What hormone causes male fetus to secrete testosterone?

A

HCG

41
Q

Why do estrogen and progesterone levels drop in menopause?

A

No follicles left to stimulate their production

42
Q

What two hormones are left unopposed in menopause?

A

FSH and LH

Part 1 (73 decks)

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