WARMUP: JANUARY 6, 2014 (REMEMBER TO WRITE IN
COMPLETE SENTENCES!)
Do you think that cloning human beings
could be considered reproduction? Why or
why not?
What kind of reproduction is it?
REPRODUCTION
THE STORY OF LIFE
SECTION OBJECTIVES
1. How are sperm and eggs made?
2. How does fertilization occur?
3. What problems can happen in the reproductive
system?
MALE REPRODUCTIVE
SYSTEM
Functions:
1. To make sperm
2. To deliver sperm to the female reproductive system
Work
Definition
Function
testes
A pair of organs outside the body
Make sperm and testosterone
scrotum
Skin that covers the testes
Protection
epididymis
Tube attached to testes
Stores sperm as they mature
vas deferens
Connects the epididymis and urethra
Where mature sperm pass
urethra
Tube from bladder to penis
penis
Male organ
Delivers sperm to female
semen
Fluid mixture that sperm mixes with
To keep sperm moistioned
Vas deferens
Urinary Bladder
Pubic Bone
Prostrate gland
Urethra
Penis
Epididymis
Testis
Scrotum
FEMALE REPRODUCTIVE
SYSTEM
Functions:
1. To produce eggs
2. To protect and nourish developing offspring
3. To give birth
Work
Definition
Function
ovary
Where eggs are produced
To release female sex hormones and eggs
estrogen
Female hormone
Control release of eggs from ovaries and
development of female characteristics
progesterone
Female hormone
Same as above
ovulation
When an ovary releases an egg
So an egg can become fertilized
fallopian tube
Tube that leads from ovary to uterus
To carry egg to uterus to develop
vagina
Canal between outside of body and uterus
What baby comes through when it is born
menstruation
Monthly discharge of blood and tissue from the To shed waste not used for a developing baby
body
FEMALE REPRODUCTIVE SYSTEM
Ovary
Fallopian tube
Uterus
Pubic bone
Cervix
Urinary
bladder
Urethra
Vagina
PROBLEMS WITH THE REPRODUCTIVE SYSTEM
1. Infertility (not enough healthy sperm or not ovulating properly
2. Cancer (disease in which cells grow at an uncontrolled rate)
3. HIV (human immunodeficiency virus)
STD
Approximate number of new cases each year
Chlamydia
3 to 10 million
Genital HPV (human
papilloma virus)
5.5 million
Genital herpes
1 million
Gonorrhea
650,000
Syphilis
70,000
HIV/AIDS
40,000 to 50,000
MENSTRUAL CYCLE
Egg
(14th day)
released from ovary
to fallopian tube
(ovulation)
fertilization or not
if no fertilization, lining is shed
on 28th day
uterus
embryo develops into fetus
IN-CLASS QUESTIONS
1.
How many sperm can a male make in one day? How many eggs does a
female make?
2.
Calculate: The average woman ovulates each month from about the age
of 12 to about the age of 50. How many mature eggs does she release
from age 18 to age 50? Assume that she has never been pregnant.
3.
In women, some untreated STDs can block the fallopian tubes. How would
this affect fertilization?
4.
Fraternal twins are created when two sperm fertilize two different eggs.
Paternal, or identical, twins are created when a single egg divides after
fertilization. Why are fraternal twins not identical?
SECTION OBJECTIVES
1. How are sperm and eggs made?
2. How does fertilization occur?
3. What problems can happen in the reproductive
system?
HOMEWORK: FOR TUESDAY, JANUARY 7TH, 2013
Read chapter 26: Section 2 and 3: expect
a short 10 question quiz that will come
directly from your reading of section 2.
WARMUP: JANUARY 7, 2014 (REMEMBER TO WRITE
IN COMPLETE SENTENCES)
1.What purpose does the epididymis
serve?
2.What is menstruation?
THE MIRACLE OF LIFE