The
Adolescent
Male
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Objectives
1. To learn the changes taking place with
male anatomy and physiology during
puberty
2. To learn the role of hormones in
growth, development and personal
health
3. To define the structure and function of
the male anatomy
4. To learn about reproduction
5. To learn about the emotional
development taking place during
adolescence
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The Adolescent Male
M
e
n
u
The Male Anatomy
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Puberty
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Reproduction
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Common Male Diseases
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Discussion Questions
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The Male Anatomy
Male Reproductive Anatomy
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The Male Anatomy
The Male Anatomy
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Summary
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Quiz
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The Male Anatomy
• Testes
– produce sperm
– sperm and other ejaculatory
fluids together are called
semen
– the pituitary gland secretes
the hormone testosterone,
which causes the production
of sperm
• Scrotum
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– skin-like pouch made of skin
and muscles which holds the
testes
– acts as a protection and
temperature regulator
Testes
The Male Anatomy
• Epididymis
– one attached to each testicle
– provides for the storage,
transmission and maturation of
sperm
• Vas Deferens
– serve as the excretory ducts
for the testes
– connects the epididymis and
the urethra
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The Male Anatomy
• Urethra
– passageway for
eliminating urine and
semen
• Seminal Vesicles
– secretes fluids, which
nourish the sperm and
increase their mobility
– these fluids make up
part of the semen
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The Male Anatomy
• Prostate Gland
– makes a secretion to the
semen increasing the
mobility of sperm
• Cowper’s Gland
– cleanses the urethra of
any acidity to provide a
safe passageway for the
semen
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The Male Anatomy
• Penis
– made of muscle, spongy
tissue and blood
vessels
– contains the urethra
– discharges urine and
semen from the body
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The Male Anatomy
Urethra
Vas Deferens
Seminal
Vesicles
Prostate
Gland
Cowper’s
Gland
Penis
Testes
Scrotum
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Epididymis
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Summary
• The male reproductive system has many
structures and functions
• These structures go through many
changes during puberty
• The main function of the system is to
provide sperm for reproductive purposes
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Quiz
1. The ________ produces sperm.
A. testes
B. scrotum
C. urethra
D. none of these
2. The testes are held in a skin-like pouch called the
_______.
A. epididymis
B. Cowper’s gland
C. penis
D. scrotum
3. ____________ consists of sperm and other ejaculatory
fluids.
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A. epididymis
B. Semen
C. Saliva
D. none of these
Quiz
4. The ___________ cleanses the urethra of any acidity.
A. Cowper's glands
B. prostate gland
C. testes
D. scrotum
5. The ___________ discharges urine and semen from the
body.
A. seminal vesicles
B. Cowper’s gland
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C. scrotum
D. none of these
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Puberty
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Puberty
Puberty
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Emotional Changes
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Physical Changes
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Summary
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Quiz
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Puberty
• Puberty is the period of
time when sexual
characteristics develop
and sexual organs mature
• Adolescents experience a
significant growth spurt
during this time
• Adolescents experience
new and different emotions
during this time
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Puberty
•
Brain releases a special hormone called
the gonadotropin-releasing hormone,
which causes puberty
– when the hormone reaches the pituitary
gland, the gland releases two more
puberty hormones:
1. Luteinizing hormone
2. Follicle-stimulating hormone
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Puberty
• Luteinizing & Follicle-stimulating
– stimulates secretion of sex steroids from the
gonads or testes
• starts the synthesizing and secreting of
testosterone
• The follicle-stimulating hormone is
critical for sperm production and
maturation
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A boy will make 12
TRILLION sperm in his
lifetime. Sperm takes
about 72 days to
mature.
Puberty
• These two hormones are secreted from
the pituitary gland and signal the testes
to begin producing sperm and
testosterone
– testosterone
causes the
development of
secondary sex
characteristics
in males
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Secondary sex
characteristics are visible
physical changes to your
body during puberty.
Puberty
• Occurs between the ages of nine and 16
• Causes changes, which occur gradually or
very rapidly
– will see the greatest amount of growth during
adolescence
– will experience many growth spurts and
puberty changes
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Puberty
Emotional Changes
• Desire to control own life and be
independent
• Experience strong feelings and emotions
unlike any before
• Desire relationships
• Experience mood changes
– bad temper
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What are some stereotypes
about males relating to
emotions? And females?
Puberty
Physical Changes
• Adolescence
– period of
development which
occurs around the
age of 11
– adolescents face
growth spurts and
puberty changes
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Puberty
changes
may occur
gradually or
quickly
Physical Changes
Physical Changes
• Puberty usually starts in males around the age
10 ½ and can last to the late teens
• First change usually seen in males is the
enlargement of the testicles
• Penis enlargement usually begins about one
year after the testicles begin growing
• Penis usually begins to grow around age 13
and continues to grow for nearly two years
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The age when genital
development occurs
varies from person
to person.
Physical Changes
• Usually occurs
around 12 years of
age
• Takes on a more
muscular and
angular shape,
which is due to
testosterone
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– testosterone causes
increase in muscle
mass
Physical Changes
• Weight
– increases by 15 to 65 pounds
• Height
– increases by four to 12 inches
It
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It may seem like your feet, hands,
arms and legs are growing faster
thething
rest as
of “normal”
your body.
There is than
no such
growth.
There is only
what is normal
for catch
is normal—
everything
will
up!
Physical Changes
• Swelling in boys’ chest area may happen
during puberty
– caused by the increase in hormones in the
body during puberty
This is normal, but if it causes
concern, talk to a doctor.
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Physical Changes
• Oil glands become more active during
puberty
– this causes acne
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Acne usually
begins around
the start of
puberty and lasts
throughout the
teen years.
Physical Changes
• Breakouts or acne— skin condition
appearing as bumps
– oil glands increase production of oil
during puberty
– four types of acne
If you are
1. whitehead
2. blackhead
3. pimple
4. cyst
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bothered by
acne, you can
visit your doctor
to receive a
prescription.
Physical Changes
• Four types of acne:
1. whitehead— when a
clogged pore closes
and bulges out from
the skin
2. blackhead— when a
clogged pore stays
open and the
surface becomes
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dark
Physical Changes
3. pimple— small red infection caused by
bacteria and dead skin cells
4. cyst— clogged pore deep in the skin
possibly leading to a bigger infection
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Physical Changes
• To prevent acne:
 drink a lot of water
 wash your face every
day
 examine over-the-counter
products designed to fight
breakouts
 keep your hair off your face
− your hair’s natural oils can cause
your face to become oily
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Physical Changes
– use oil-free products on your face
– avoid putting your hands on your face
• your hands can transfer bacteria to your face and
this causes breakouts
– visit a doctor to talk about your acne and to
receive a prescription
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Physical Changes
• Skin glands
– become active during puberty
– make chemicals, which cause new and
different smells to develop
– this smell is referred to as body odor
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Keeping clean by showering
and using deodorant will help
lessen the smell.
Physical Changes
• Hair
– begins to grow on body between ages 12 and
14
– is found in a small area around the genitals
– will spread to the inside of thighs and then to
the abdomen slowly
– becomes coarser and darker as it spreads
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The amount of hair and
how quickly it grows is
different for each
person.
Physical Changes
• With time hair will
grow on your:
–
–
–
–
–
–
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face
underarms
chest
arms
legs
buttocks
Once you develop facial hair you will
need to start shaving. The frequency of
shaves will depend on the amount of hair
you grow.
Physical Changes
• Voice will begin to deepen
• Triggered by testosterone
• Lets the larynx know it is
time to grow
– so, the larynx and vocal
cords grow
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Your larynx is
your voice box.
Physical Changes
• How big a boy’s larynx
grows determines how deep Do not be embarrassed if
Why is it called an Adam's
his voice will be
your
voice
cracks.itThis
Apple?
Because
looksis
• When a boy’s larynx grows, like
very
normal.
Remember,
a small,
rounded
apple.
it pushes his Adam’s apple this happens to all boys.
forward
• As a boy’s voice is changing,
sometimes it might crack or
Adam’s apple
squeak
– can happen at any time
– is perfectly normal
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Puberty
Summary
• The male reproductive system has many
structures and functions
• These structures go through many
changes during puberty
• The main function of the system is to
provide sperm for reproductive purposes
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Puberty
Quiz
Q
u
i
z
1.Define puberty.
2.Name two hormones which cause the
onset of puberty.
3. The luteinizing hormone stimulates the
secretion of what sex steroid in males?
4. Where are the luteinizing and folliclestimulating hormones secreted from?
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5. What does testosterone cause in
males?
Puberty
Reproduction
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Reproduction
Reproduction
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Fertilization
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Pregnancy & Birth
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Summary
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Quiz
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Reproduction
• Puberty also is the transition period where
males become able to reproduce
• Occasional and spontaneous erections
occur throughout life for males
An erection is when the
penis is filled with blood,
making it hard and erect.
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Reproduction
• Males get erections more frequently
during puberty
Erections can
occur with or
without sexual
stimulation.
Remember, this is a
natural part of growing up.
This is nothing to be
embarrassed about!
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Reproduction
• Males’ bodies begin producing sperm during
puberty
• Semen is composed of sperm and other bodily
fluids
• Semen may be released during an erection
– this is known as ejaculation
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Sperm is the male
reproductive cell
produced by the
testes.
Reproduction
Fertilization
•
•
Ovary
releases an
egg into the
uterus
Fertilization occurs
when the sperm from
a male joins an egg
from a female
•
If this happens,
a pregnancy
occurs and the
baby grows in
the uterus
A pregnancy cannot occur until a female reaches
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puberty and menstruation has begun.
Reproduction
The baby is ready
to be born after
about 40
weeks.
Pregnancy & Birth
• Pregnancy is when a fertilized egg
attaches to the uterus wall
 an embryo is developed by the
division of the egg cells
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− is called a fetus from the third
month of pregnancy on
− requires lots of nutrition in
order to properly develop
− will gain most of its weight
during the last three months of
pregnancy
Pregnancy & Birth
• Birth occurs in three stages
1. Stage One
− usually mild muscle contractions in
abdomen as uterus begins to push
baby into cervix
2. Stage Two
− baby passes through the cervix
and into birth canal
3. Stage Three
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− uterus muscles contract and the
placenta separates from lining of
uterus and passes through cervix
Reproduction
Summary
• During puberty, a male’s body will go
through many different changes
• It is normal for a teen to go through
growth spurts during this process
• Physical changes begin at different times
for each individual
Reproduction
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Quiz
1.
2.
3.
4.
Define erection.
Define sperm.
Define ejaculation.
All of the following statements regarding male
reproduction are false EXCEPT:
A.
B.
C.
D.
males can reproduce at puberty
males can reproduce at the age of 10
males go to the doctor to reproduce
males produce eggs to reproduce
5. Define semen.
Reproduction
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Common Male Diseases
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Common Male Diseases
Common Male Diseases
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Summary
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Quiz
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Common Male Diseases
• Testicular cancer
– abnormal cell growth in the
testes
– occurs in one out of every
25,000 men each year
– occurs most commonly
between the ages of 15 and
40 years old
– are best prevented with
Testicular Self-Examinations
(TSE)
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• should be done once a month
Most men do their
TSEs in the shower
by holding the
testicle with the
thumb and
forefinger and
moving them in a
circular motion to
feel for lumps,
which are usually
pea sized.
Common Male Diseases
• Prostate Cancer
– abnormal cell growth in the prostate
– cause is unknown
– usually occurs in men older than the age of 45
– more common in African-Americans than
Caucasians and Asians
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If diagnosed early,
prostate cancer
can be
successfully
treated.
Common
Male
Diseases
Summary
• Testicular and prostate cancer are very
common in males
• Diseases can be cured if they are detected
early
• Self examinations and regular checkups can
help the body stay disease free
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Common
Male
Diseases
Quiz
1.
What disease is characterized by abnormal cell growth
in the testes?
A. prostate cancer
B. testicular cancer
C. skin cancer
D. kidney stones
2.
Testicular cancer occurs most commonly between
____________ year of age.
A. 15 and 40
B. 12 and 23
C. 20 and 45
D. 22 and 50
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Quiz
3. _____________ are the best form of prevention from
testicular cancer.
A. Blood tests
B. TSEs
C. hormone tests
D. none of the above
4. TSEs should be performed how often?
A. once a year
B. twice a month
C. every six months
D. once a month
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Quiz
5. _______________ usually occurs in males over the age
of 45.
A. Testicular cancer
B. Prostate cancer
C. Lung cancer
D. Heart disease
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Common
Male
Diseases
Questions
• How does all of this information
make you feel?
• What kind of changes do you think
boys your age are experiencing?
• How can you help someone who is
going through puberty?
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Acknowledgements
KidsHealth
http://www.kidshealth.org
Center For Adolescent and Family Studies
http://education.indiana.edu/cas/adol/adol.html
The Royal College of Psychiatrists
http://www.rcpsych.ac.uk/info/help/adol/
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Acknowledgements
Production Coordinator
Dusty Moore
Graphics Designer
Dusty Moore
Aleesa Ross
Collaborator
Brandi Egli
Production Manager
Lacey Yancey
Executive Producers
G.W. Davis
Jeff Lansdell
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