1. Human Reproduction Reproductive Systems Intercourse to Birth
HIV and the World
Sam’s List
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2. Reproductive Systems A. Sex Hormones B. Male and Female Systems
C. The Menstrual Cycle
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3. Think about it! A. Sex Hormones
What are some things that are controlled by hormones?
Think about it!
A. Sex Hormones
1. Adolescence is controlled by hormones produced by the testes or ovaries
2. Testosterone is the male sex hormone (testis)
3. Oestrogen and progesterone are female sex hormones (ovaries)_
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4. B. Male and Female Systems
1. The male reproductive system consists of
a. scrotum- sac containing testicles
b. testis- produces sperm and testosterone
c. epididymis- stores sperm
d. vas deferens- carries sperm from testis to urethra_
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5. e. seminal vesicle and prostate gland- produce fluid of semen
f. urethra- carries semen to the tip of penis
g. penis- becomes erect when filled with blood
h. bladder_
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6. 2. The female reproductive system consists of
a. ovary- produces ova (egg), oestrogen, and progesterone
b. Fallopian tube- carries ovum to uterus (place of fertilization)
c. uterus- where fetus develops
d. cervix- neck of uterus
e. vagina- receives penis and is the exit for the baby_
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7. C. The Menstrual Cycle
1. Throughout the menstrual cycle there are changes in the ovary and uterus
a. once every 28 days one egg (contained in follicle) moves to the edge of the ovary
b. day 14- egg bursts out of follicle (ovulation)
c. egg passes through the Fallopian tube_
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8. d. lining of uterus becomes thick and full of blood vessels
e. if pregnancy does not occur the cycle starts over
1) lining slowly breaks down
2) is gradually lost through the vagina (menstruation)_
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9. The End

10. Intercourse to Birth A. Intercourse B. Protecting the Embryo
C. The Process of Birth
Dogypom
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11. Think about it! A. Intercourse 1. Sexual intercourse (copulation)
What is meant by the term “Safe” Sex?
Think about it!
A. Intercourse
1. Sexual intercourse (copulation)
a. penis fills with blood to become erect
b. vagina walls release lubricating fluids
c. penis is placed into the vagina
d. stimulation sets off release of sperm_
askville
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Think

12. 2. Fertilisation is union of sperm and egg (Fallopian tube)
a. only one out of the millions of sperm can penetrate
b. sperm nucleus move to and fuses with egg nucleus
c. zygote begins to divide
3. Implantation- ball of cells (embryo) buries itself into the uterus lining_
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13. B. Protecting the Embryo
1. The amnion provides the protection given to the embryo
a. membrane containing amniotic fluid
b. protects against mechanical shock, drying out, and temperature fluctuations_
University of South Whales
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14. 2. The placenta allows the transfer of materials to and from the fetus
a. exchange of food, waste, and oxygen
b. physical attachment to uterine wall
c. protect from mother’s immune system and blood pressure fluctuations
d. secretes hormones to maintain uterus_
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15. C. The Process of Birth
1. The process of birth begins after about nine months
a. the head of the baby rests against cervix
b. contractions begin every 20 minutes becoming more frequent and powerful
c. amniotic membrane breaks releasing fluid
d. cervix begins to dilate to the size of the baby’s head_
daylife
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16. e. baby’s head passes through cervix and vagina
f. gentle contractions push the body through the birth canal (vagina)
g. placenta detaches and leaves the vagina (afterbirth)_
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17. The End

18. HIV and the World A. Human Population B. The AIDS Epidemic
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19. A. Human Population
Minnesotans For Sustainability
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Wilderdom
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1. The world population of humans is growing rapidly
a. humans alter the environment to increase their carrying capacity
b. as agricultural, industrial, and medical technology improves, population increases
c. the earth is quickly reaching its limit_
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20. 2. Birth control can help to limit the increase in population
a. understanding the natural cycle
b. physical barrier (condom)
c. chemical (pill)
d. surgery_
Healthy Start Coalition of Hillsborough County
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21. Think about it! B. The AIDS Epidemic
What are some things you “know” about AIDS?
Think about it!
B. The AIDS Epidemic
1. There are several methods of transmission of HIV (human immunodeficiency virus)
a. sexual intercourse
b. mother to child
c. transfer blood or organs
d. sharing intravenous needles_
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22. a. severe depression in immune system
2. HIV transmission leads to AIDS (acquired immune deficiency syndrome)
a. severe depression in immune system
b. infections by other organisms (fungal, pneumonia, or cancer) lead to death_
Stolen Childhood
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23. 3. The spread of AIDS may be limited by a. contraception b. abstinence
c. knowledge_
Health Map
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24. The End