2. Let’s Start with the Parts:
The Reproductive System is the organs that
are involved in sexual intercourse and in-turn
reproduction
Made up of internal and external organs; also
includes hormones and glands
The reproductive system
begins to mature at
puberty; when
testosterone begins to
spike
3. The Male Side
Penis: A tube shaped organ that extends
from the body just above the testes
4. The Male Side
At birth, the penis has a covering of thin loose
skin called Foreskin that covers the head
Often, this foreskin is removed at birth. This
procedure is known as a Circumcision.
In the U.S. 60-70% of
baby boys are
circumcised.
5. To Circumcise or Not?
Research what cultures/ religions have
differing views on this subject.
Find at least three different
cultures/religions and what their views
are.
6. To Circumcise or Not?
Pros of Circumcision:
Can reduce the prevalence of HIV
Sub-Sahara Africa = 68% decrease
Decreased risk of urinary tract
infections
No risk of infections surrounding
foreskin
7. To Circumcise or Not?
Cons of Circumcision:
May increase meatitis-
inflammation of the opening of
the penis
May decrease sexual satisfaction
for both partners
8. To Circumcise or Not?
There is major controversy over whether or
not circumcising new-born babies is ethical or
not.
Do you think that this is a violation of the
infant’s human rights/freedom of choice?
http://www.youtube.com/watch?v=--
KVD3tcmhM
9. The Male Side
Scrotum: external skin sac that contains the testes
Testes/ Testicles: are two small glands that produce
sperm
11. The Male Side
The scrotum protects the sperm in the testes, it also
helps keep the sperm at 98.6 degrees F, or normal
body temperature.
If it’s too warm, the suspensory ligament and scrotum
muscles drop the testes down.
If it’s too cold, the opposite occurs, and pulls the
testes in closer to the body.
12. The Male Side
When puberty hits, the testes start to secrete
testosterone and producing sperm.
This increase in testosterone and the presence of
sperm results in the ability for males to experience an
erection.
An erection occurs when there is an increase in blood
flow to the penis.
13. The Male Side
Many different things can cause this increase in blood
flow, especially during pubescent years.
Even the friction of clothing can sometimes cause
arousal. This can be a cause of embarrassment for
many young males.
15. The Male Side
At the onset of sexual stimulation, the male reproductive
system begins producing pre-ejaculate fluid.
This fluid is a clear mucous like liquid produced and
secreted through the urethra in order to balance the pH
from the acidity of urine to a safe level for the passage of
sperm. This fluid can also serve as a natural lubricant.
On rare occasion, pre-ejaculate fluid may contain sperm.
Therefore, it is difficult to say that “withdrawal” (or withdrawing
the penis before full ejaculation) is a safe practice for
contraception.
16. The Male Side
When the male reaches the peak of sexual arousal, a
series of muscular contractions begin to occur.
These contractions bring the sperm through the
reproductive pathways, mixing it in with other things
to be secreted.
17. The Male Side
Eventually all is secreted through the penis
(more specifically the urethra) in a substance
called semen.
Semen is a thick white or greyish fluid that
contains sperm and other secretions from the
male reproductive system.
Other substances in semen include proteins,
sugars, citric acid, and potassium.
18. The Male Side
The average volume of semen produced
in a single ejaculation varies from 2 to 5
ml.
19. The Male Side
The semen from a single ejaculation may
contain between 40 million and 600
million sperm, depending on the volume
of the ejaculate and the length of time
since the last ejaculation.
21. The Male Side
This amount of sperm is alarming considering it takes
only one sperm to fertilize a female egg.
http://www.youtube.com/watch?v=65BV5dXXxzM
22. The Male Side
Problems with male reproductive organs
Impotence
Sterility
Inguinal Hernia
Testicular Cancer
23. The Male Side
Impotence: consistent inability to sustain an erection
sufficient for sexual activity or the inability to achieve
ejaculation
Risk of this problem increases with age
Other causes:
Poor diet
Lack of physical activity
Diabetes
Smoking
Alcohol
Depression
Stress
24. The Male Side
Treatment:
Stopping any activity that may cause the problem
Prescription medication
26. The Male Side
Sterility: male infertility> the inability to produce
sperm
Causes:
Environmental factors
Exposure to radiation
Hormone changes
Use of drugs Anabolic Steroids
27. The Male Side
Tight clothing that restricts the movement of the
scrotum may hinder the production of sperm.
28. The Male Side
Inguinal Hernia: Separation of tissue allowing the intestine to
push through the abdominal wall near the top of the scrotum
29. The Male Side
Causes: Lifting heavy objects and or straining the
abdominal muscle
Symptoms:
Lump in Groin Area near the thigh
Pain in groin
SEVERE: partial or complete intestinal blockage
Surgery is usually necessary
32. The Male Side
Use this website:
http://kidshealth.org/parent/general/body_basics/male_repro
ductive.html#
And do the male reproductive overview worksheet
