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Biology > Human Reproduction > Flashcards

Human Reproduction Flashcards

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1
Q

Testes

A

Produce sperm
Store sperm
Make testosterone

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2
Q

Scrotum

A

Maintains testes at 35 degrees

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3
Q

Epididymis

A

Stores and matures sperm cells

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4
Q

Sperm duct/Vas Deferens

A

Transports sperm from testis to urethra

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5
Q

Prostate gland

A

Nourishes sperm

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6
Q

Seminal Vesicle

A

Produces seminal fluid

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7
Q

Urethra

A

Carry sperm and urine through penis

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8
Q

Sperm

A

Produces in testes by meiosis

0-7 days

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9
Q

Oestrogen

A

Repairs endometrium
Stimulates LH
Inhibits FSH

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10
Q

Progesterone

A

Maintains endometrium
Inhibits LH
Inhibits FSH

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11
Q

Testosterone

A

Causes male secondary sexual traits

Triggers formation of primary male sexual traits

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12
Q

FSH

A

Stimulates meiosis
Causes sperm and egg to be produced
Causes formation of Graafian follicle

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13
Q

LH

A
  • Stimulates the production of testosterone
  • Causes ovulation
  • Inhibits the production of oestrogen
  • Stimulates the production of progesterone
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14
Q

Infertility

A

Inability to produce offspring

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15
Q

MALE INFERTILITY

A

CAUSE: Low sperm count - lack of FSH
Treatment: Inject FSH

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16
Q

Changes in Ovary

A
  • Graffian follicle forms oestrogen
  • Matures and moves to surface of ovary
  • Bursts to release an egg
  • Enlarges and moves to ovary to become corpus luteum to form progesterone
17
Q

Menstrual Cycle

A 
28 days
1. FSH
2. Oestrogen
3. LH
4. Progesterone 
Day 28: Corpus Luteum stops producing progesterone. Uterus contracts
18
Q

Day 1-5

A

Endometrium Sheds

19
Q

Copulation

A

Coupling, the act of sexual union or intercourse

20
Q

Day 7 of Pregnancy

A

Implantation

21
Q

Gestation

A

The length of time the baby spends in the uterus

22
Q

Benefits of Breadtfeeding

A

Balance of nutrients for baby
Supplies antibodies
Less chance of infection from breast milk than bottle

23
Q

Natural Contraception

A

Intercourse is avoided on days around ovulation

24
Q

Mechanical Contraception

A

Condom over penis

Diaphragm in vagina

25
Q

Chemical Contraception

A
  • Contraceptive poll contains oestrogen and progesterone to prevent eggs from forming
  • Spermicides kill sperm
26
Q

Surgical Contraception

A

Sperm duct is cut and tied - vasectomy

Fallopian tube is cut and tied - tubal ligation

Biology (38 decks)

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