1. Aim # 57: How are humans adapted for reproduction?
Date: March 10th, 2017-period 1
Aim # 57: How are humans adapted for reproduction?
HW:
Daily Review of class notes.
All Labs due Monday  (not including Development of Human Fetus Lab)
Do Now:
Define the life function reproduction.
What are the two types of reproduction?
Name two characteristics of each.
Which type do humans carry out?

2. Aim #57: How are humans adapted for reproduction?

3. Look Who’s Talking What happened during the movie clip?
Why were their so many sperm released into the female reproductive system?
Why did only one sperm nuclei fertilized the egg?

4. Reproductive System Endocrine System
1) What are the two major anatomical adaptations that aid humans for reproduction?
Reproductive System
Endocrine System

5. 2) Female Reproductive System
Ovaries – produce egg cells & hormones estrogen & progesterone
Oviduct or Fallopian Tube – site of fertilization, carries egg to uterus
Uterus – site where embryo develops
Vagina – birth canal & site that allows for internal fertilization

6. 3) Male Reproductive system
Testes – produce sperm & hormone testosterone
Scrotum – sac that keeps testes cool
Vas deferens - carry sperm from testes to penis
Seminal vesicle & Prostate gland – produce liquid with glucose for sperm. Why?
Urethra – carries urine & semen out of body

7. Brain Pop- Reproductive Systems (~2 minutes)

8. Aim # 57: How are humans adapted for reproduction?
Date: March 13th, 2017
Aim # 57: How are humans adapted for reproduction?
HW:
Daily Review of class notes.
Human Reproduction Packet due Friday
Do Now:
Labs??? Turn them in!
Compare the male and female reproductive system. Identify..
Gonads
Sex cells
hormones

9. 4) What is the name of this process & where does it take place?
46X
Meiosis
Gonads
23X
23X
23X
23X

10. 5) Sexual Reproduction:23
Fertilization 23 46 +
Zygote
Egg
A fertilized egg cell is called a Zygote
Sperm
Characteristics of Sexual Reproduction:
1) Is the creation of a new individual from parents. 2
2) Offspring are not genetically to the parents.
identical

11. 6) Internal Fertilization:
Eggs and sperm meet inside the female’s body
Occurs in most land vertebrates
Ex. Reptiles, birds, mammals

12. 7) External Fertilization:
Eggs fertilized outside female’s body
Occurs mostly in aquatic environments
Ex. Fish, amphibians
HAZARDOUS – many eggs and sperm are produced so some survive
Eggs and sperm may not meet, they may be eaten or environmental conditions may change

13. 8) Embryonic Development
An embryo is a developing offspring. Development can be either INTERNAL or EXTERNAL, depending on the organism.

14. 9) INTERNAL DEVELOPMENT
Embryo develops inside the female, placenta provides nourishment

15. Human Fertilization
Internal fertilization – male penis is used to introduce sperm into female’s vagina.

16. 10) Where does fertilization usually occur?
Fertilization occurs in the fallopian tubes (oviduct)
Ovary
Fertilization
Egg

17. 11) How many eggs are released a month by a female?
Normally one egg is released per month, however, sometimes TWO can be released at the same time.
Ovulation

18. 12) What happens after fertilization?
The embryo travels to the uterus and implants itself in the uterus lining

19. Summary Questions
How are internal and external fertilization different?
What types of organisms carry out external fertilization? Why?
How are internal and external development different? Name an example of an organism that carries out each.
In humans, where does fertilization occur? Where does the embryo implant and continue to develop?

20. Male Reproductive System Female Reproductive System
Summary continued…
Male Reproductive System
Female Reproductive System
D &E
Testes
Scrotum
Vas deferens
Seminal vesicle and prostate gland
Urethra
Ovaries
Oviduct
Uterus
Vagina F B C
Can you state the function of each and identify the structure on a diagram??

22. Nova – The Miracle of life
NOVA Online | Life's Greatest Miracle | Watch the Program Here