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Biology 1500 Test 3 > Male and Female Reproductive Physiology > Flashcards

Male and Female Reproductive Physiology Flashcards

1
Q

Seminiferous Tubules (STs)

A

Produce sperm

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2
Q

Leydig Cells

A

Secrete testosterone

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3
Q

Spermatogenesis

A

Starts at puberty, takes 70-80 days

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4
Q

Sertoli cells

A

In the STs, new sperm are embedded and these cells nourish and control development of the sperm

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5
Q

Endometrium

A

Lining of the uterus, egg implants here during pregnancy

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6
Q

Ovary

A

Produces eggs from follicles

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7
Q

Follicles

A

Many begin maturation during each cycle, fastest growing one wins and ovulates an egg

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8
Q

Oviducts

A

Fallopian tubes, convey egg to uterus, fertilization occurs in tubes

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9
Q

Menopause

A

Menstrual cycle stops because most follicles are gone

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10
Q

FSH

A

Stimulates maturation/growth of follicles

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11
Q

What happens if you run out of follicles?

A

You run out of estrogen

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12
Q

FSH and LH

A

Required to stimulate estrogen secretion, estrogen secretion dramatically increases because follicle gets bigger

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13
Q

High levels of Estrogen

A

Cause hypothalamus to switch from negative to positive feedback and stimulates endometrial growth so egg can implant

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14
Q

LH Surge

A

Caused by positive feedback, causes ovulation

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15
Q

Ovulation

A

Release of egg

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16
Q

Placenta

A

Site where egg implants in the endometrium

17
Q

Corpus Luteum (CL)

A

Follicle remnants after ovulation, produces estrogen and progesterone

18
Q

No pregnancy

A

CL degenerates after 7 days causing P and E to drop, endometrium to die and menstruation to begin

19
Q

Human Chorionic Gonadotropin (HCG)

A

Egg produces this if fertilization occurs, hormone that prevents CL from degeneration, rescued CL produces E and P that maintains health of uterus during the first month of pregnancy, placenta takes over after

20
Q

What stops ovulation during pregnancy?

A

High progesterone from CL and placenta during pregnancy by blocking LH surge

21
Q

How do early pregnancy tests work kits work?

A

Detect changes in HCG

22
Q

How can you make a birth control pill?

A

Mimics corpus luteum, blocks progesterone action and gives prostaglandis

Biology 1500 Test 3 (15 decks)

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