3. The Male Reproductive System
• The pituitary gland releases the
gonadotropic hormones _________
4. The Male Reproductive System
• The pituitary gland releases the gonadotropic
hormones LH and FSH.
• These hormones stimulate the testes to begin
producing _________
5. The Male Reproductive System
• The pituitary gland releases the gonadotropic
hormones LH and FSH.
• These hormones stimulate the testes to begin
producing testosterone and sperm.
• Testosterone is the hormone which is responsible
for the development of _________
6. The Male Reproductive System
• The pituitary gland releases the gonadotropic
hormones LH and FSH.
• These hormones stimulate the testes to begin
producing testosterone and sperm.
• Testosterone is the hormone which is responsible
for the development of secondary sex
characteristics in males.
7. The Male Reproductive System
Testosterone
Leydig Cells
(located in the testes)
to produce
LH
Luteinizing Hormone
stimulates the
Sperm
Seminiferous Tubules
(located in the testes)
to produce
FSH
Follicle Stimulating Hormone
stimulates the
Pituitary Gland
produces
10. External Male Reproductive
Organs
• Penis
– Male sexual organ
– Serves an important function in sexual
reproduction, pleasure, and elimination of body
wastes
14. External Male Reproductive
Organs - Penis
• When sexually aroused, the penis becomes
stiff and enlarged (erect) because its tissues
fill with blood.
• Although the entire penis is sensitive and
sexually excitable, the _________ and
_________ are particularly sensitive.
15. External Male Reproductive
Organs - Penis
• When sexually aroused, the penis becomes
stiff and enlarged (erect) because its tissues
fill with blood.
• Although the entire penis is sensitive and
sexually excitable, the glans penis and
corona are particularly sensitive.
19. External Male Reproductive
Organs - Penis
• Erections can occur at any time
• Men have no control over the timing of
erections
• Little baby boys have erections
24. External Male Reproductive
Organs - Penis
Average size when flaccid
2-4 inches long
Average size when erect (hard or aroused)
_________ inches long
25. External Male Reproductive
Organs - Penis
Average size when flaccid
2-4 inches long
Average size when erect (hard or aroused)
5-6 inches long
31. External Male Reproductive
Organs - Penis
• Circumcision
– All boys are born with a fold of skin over the
end of the penis.
– This is called the _________
32. External Male Reproductive
Organs - Penis
• Circumcision
– All boys are born with a fold of skin over the
end of the penis.
– This is called the foreskin.
– A circumcision is _________
33. External Male Reproductive
Organs - Penis
• Circumcision
– All boys are born with a fold of skin over the
end of the penis.
– This is called the foreskin.
– A circumcision is the clipping off of that fold of
skin.
– Circumcisions are usually performed a few
days to a few months after birth.
37. External Male Reproductive
Organs - Penis
• Circumcisions are performed for religious
and cosmetic reasons.
• Doctors once performed circumcisions
because they believed _________ build up
led to disease.
38. External Male Reproductive
Organs - Penis
• Circumcisions are performed for religious
and cosmetic reasons.
• Doctors once performed circumcisions
because they believed smegma build up led
to disease.
39. External Male Reproductive
Organs - Penis
• Circumcisions are performed for religious
and cosmetic reasons.
• Doctors once performed circumcisions
because they believed smegma build up led
to disease.
• Smegma may cause irritation and infection
if the penis is not _________ on a regular
basis.
40. External Male Reproductive
Organs - Penis
• Circumcisions are performed for religious
and cosmetic reasons.
• Doctors once performed circumcisions
because they believed smegma build up led
to disease.
• Smegma may cause irritation and infection
if the penis is not cleaned on a regular basis.
41. External Male Reproductive
Organs - Penis
• According to the World Health
Organization (WHO), global estimates
suggest that 30% of males are circumcised,
of whom 68% are Muslim.
• Based on the statement above, what
percentage of non-Muslim males are
circumcised?
42. External Male Reproductive
Organs - Penis
• Only 9.6% non-Muslim males are
circumcised.
• 90.4% of non-Muslim males in the world are
uncircumcised.
• Only 56% of American males are
circumcised.
57. Circumcision Related Infant
Deaths
• In 2010, researchers estimated a
circumcision death rate of 9.01 per 100,000
or 117 per year in the United States.
• Bollinger, Dan; Boy's Health Advisory (2010-04-26). "Lost Boys: An
Estimate of U.S. Circumcision-Related Infant Deaths"
58. • Watch “Look just like Dad, by matching
genitalia?”
• http://www.youtube.com/watch?
v=XcIf6xRFPpw&feature=related
60. External Male Reproductive
System - Scrotum
Loose pouch of skin that contains the testes
and spermatic cords
-wrinkled and covered with pubic hair
61. External Male Reproductive
System - Scrotum
• The temperature of the
testicles must be
_________ degrees
lower than the
temperature of the
body in order for
sperm production to
occur.
62. External Male Reproductive
System - Scrotum
• The temperature of the
testicles must be 3-5
degrees lower than the
temperature of the
body in order for
sperm production to
occur.
64. External Male Reproductive
System - Scrotum
• The Cremaster Muscle
controls scrotal sac
length
• Thereby regulating the
temperature of the
_________
65. External Male Reproductive
System - Scrotum
• The Cremaster Muscle
controls scrotal sac
length
• Thereby regulating the
temperature of the
testes
68. External Male Reproductive
System - Scrotum
Contracting to draw them
up toward the body
when the body is cold
Relaxing to let them hang
lower away from the
body when the body is
_________
69. External Male Reproductive
System - Scrotum
Contracting to draw them
up toward the body
when the body is cold
Relaxing to let them hang
lower away from the
body when the body is
hot
70. Sterility
• A condition which a person is unable to
reproduce
– Less than 60 million sperm per healthy
ejaculate
71. Sterility
• A condition which a person is unable to
reproduce
– Less than 60 million sperm per healthy
ejaculate
• Wearing _________ clothing may cause
temporary sterility in males
72. Sterility
• A condition which a person is unable to
reproduce
– Less than 60 million sperm per healthy
ejaculate
• Wearing tight clothing may cause
temporary sterility in males
74. Sperm
• The male reproductive
cell
• Fertile male - 200
million sperm per
healthy ejaculate
75. Sperm
• The male reproductive
cell
• Fertile male - 200
million sperm per
healthy ejaculate
• Marijuana, cocaine
and cigarette use may
decrease chances of
fertilizing an by 50%
76. Sperm
• One spoonful of
semen contains 100 to
500 million sperm
• Only _________
sperm will fertilize the
female’s egg
77. Sperm
• One spoonful of
semen contains 100 to
500 million sperm
• Only one sperm will
fertilize the female’s
egg
• Each normal sperm
cell carries _________
chromosomes
78. Sperm
• One spoonful of
semen contains 100 to
500 million sperm
• Only one sperm will
fertilize the female’s
egg
• Each normal sperm
cell carries 23
chromosomes
89. Internal Male Reproductive
System
• Testes (Testicles) - two small glands that
produce sperm
• The left testicle normally _________ than
the right.
90. Internal Male Reproductive
System
• Testes (Testicles) - two small glands that
produce sperm
• The left testicle normally hangs lower than
the right.
92. Internal Male Reproductive
System - Testicles
• The testicles are
suspended from the
spermatic cords.
• The spermatic cords
contain the _________ ,
_________ ,
_________ and
_________
93. Internal Male Reproductive
System - Testicles
• The testicles are
suspended from the
spermatic cords.
• The spermatic cords
contain the vas deferens,
blood vessels, nerves and
muscle fibers.
97. Internal Male Reproductive
System - Seminiferous Tubules
• Section of the testes
where sperm are
produced
• Long threadlike tubes
• Approximately
_________ , each is one
to three feet long
98. Internal Male Reproductive
System - Seminiferous Tubules
• Section of the testes
where sperm are
produced
• Long threadlike tubes
• Approximately one
thousand tubes, each is
one to three feet long
• Combined length can
extend over a
_________
99. Internal Male Reproductive
System - Seminiferous Tubules
• Section of the testes
where sperm are
produced
• Long threadlike tubes
• Approximately one
thousand tubes, each is
one to three feet long
• Combined length can
extend over a quarter
mile
109. Internal Male Reproductive
System - Vas Deferens
• Two tubes
approximately 18
inches long
• Connect the
epididymis with the
urethra
• The vas deferens are
lined with _________
110. Internal Male Reproductive
System - Vas Deferens
• Two tubes
approximately 18
inches long
• Connect the
epididymis with the
urethra
• The vas deferens are
lined with cilia
128. Impotence
• The inability of a sexually mature male to
maintain an erection long enough to
_________
129. Impotence
• The inability of a sexually mature male to
maintain an erection long enough to have an
ejaculation.
• May be due to lack of _________
130. Impotence
• The inability of a sexually mature male to
maintain an erection long enough to have an
ejaculation.
• May be due to lack of sexual desire,
_________
131. Impotence
• The inability of a sexually mature male to
maintain an erection long enough to have an
ejaculation.
• May be due to lack of sexual desire,
inability or _________ .
132. Impotence
• The inability of a sexually mature male to
maintain an erection long enough to have an
ejaculation.
• May be due to lack of sexual desire,
inability or erectile dysfunction.
136. Internal Male Reproductive
System - Seminal Vesicles
• Two little pouches
near the prostate gland
which secrete a fluid
to help _________
137. Internal Male Reproductive
System - Seminal Vesicles
• Two little pouches
near the prostate gland
which secrete a fluid
to help provide
nourishment to the
sperm
140. Internal Male Reproductive
System - Prostate Gland
• Lies below the bladder
and is about the size of
a chestnut.
• Secretes a milky fluid
which _________
141. Internal Male Reproductive
System - Prostate Gland
• Lies below the bladder
and is about the size of
a chestnut.
• Secretes a milky fluid
which protects the
sperm.
143. Prostate Cancer -
Digital Rectal Exam
Prostate cancer affects 1
in 6 men
The PSA Blood Test,
Transrectal Ultrasound
and Digital Rectal
Exam are used to
detect the presence of
cancer.
145. Prostate Cancer -
Digital Rectal Exam
PSA is a protein
produced by the
prostate and released
in very small amounts
into the bloodstream.
When Prostate cancer
develops and grows
more PSA is released
into the blood stream.
150. Internal Male Reproductive
System - Cowper’s Gland
• Two pea sized glands
located below the
prostate
• Secretes a clear sticky
fluid that _________
151. Internal Male Reproductive
System - Cowper’s Gland
• Two pea sized glands
located below the
prostate
• Secretes a clear sticky
fluid that cleans the
urethra of urine
163. Masturbation
• Self stimulation to the point of ejaculation.
• According to former Surgeon General
Joycelyn Elders :
“[Masturbation] never got
anybody pregnant,” she said, “and
you know you’re always having
sex with somebody you love.”
164. Former Surgeon General
Joycelyn Elders
• In 1994, she was invited
to speak at a United
Nations conference on
AIDS. She was asked
whether it would be
appropriate to promote
masturbation as a means
of preventing young
people from engaging in
riskier forms of sexual
activity.
165. Former Surgeon General
Joycelyn Elders
• She replied, "I think that it
is part of human sexuality,
and perhaps it should be
taught.”
166. Former Surgeon General
Joycelyn Elders
• She replied, "I think that it
is part of human sexuality,
and perhaps it should be
taught." This remark
caused great controversy,
especially among
conservative Christian
groups and right wing
interests in the United
States. President Clinton
asked for her resignation.
167. Former Surgeon General
Joycelyn Elders
• "We know that more
than 70-80% of women
masturbate, and 90%
of men masturbate, and
the rest lie."
168. Nocturnal Emission
• Wet Dream
• An ejaculation that takes place in males
during puberty while asleep.
• Occurs because of the build up of semen.
• Sometimes it is accompanied by a dream
with sexual content
173. Testicular Cancer
• The first sign of testicular cancer is usually a
slight enlargement of one of the testes.
174. Testicular Cancer
• Pain may be absent
but usually there is a
dull ache in the lower
abdomen and groin.
175. Testicular Self Examination
(TSE)
• Early detection can be
done with a simple
three minute monthly
examination.
• The best time is after a
warm bath or shower
when the scrotal sac is
relaxed.
176. Testicular Self Examination
(TSE)
• The male rolls each
testicle gently between
the thumb and fingers
of both hands. If there
are any hard lumps the
person should see a
doctor immediately.
177.
178.
179.
180.
181.
182. Hydrocele
A hydrocele is a collection of fluid inside
the area of the scrotum, surrounding the
testicle.
Hydroceles are common in newborn infants
and normally resolve after a few months
after birth.
The main symptom is a painless, swollen
testicle, on one or both sides, which
feels like a water-filled balloon.
Hydroceles are usually not dangerous, and
they are usually only treated when they
cause discomfort or embarrassment, or
they get so large that they threaten the
blood supply of the testicle.
Chronic tobacco use - Smoking has been shown to affect arterial blood flow and may also affect the arteries in the penis, reducing the blood flow necessary to maintain an erection.
Diabetes - This is one of the most common causes of impotence, because diabetes can cause changes in blood flow through narrowing of the arteries, or damage to nerve endings in the penis.
Hormonal Imbalance - Only a small percentage of cases of impotence are due to hormonal problems, such as insufficient testosterone.
Neurologic Impairment - Injuries to the spinal cord or brain, or neurological diseases, such as Alzheimer's Disease, can lead to impotence. Erectile dysfunction is commonly associated with multiple sclerosis and Parkinson's disease.
Pelvic Surgery - Surgery or radiation to the prostrate, bladder, rectum or colon can cause nerve damage in the surrounding area. The damage may interfere with signals that must pass between the brain and the sexual organs to allow erection and orgasm.
Pelvic Trauma - Injuries caused by accidents, particularly accidents associated with bicycle riding, water sports, gymnastics and horseback riding, can cause impotence.
Prescription Drugs- Many prescription drugs, especially blood pressure or anti-depressant medication, can cause impotence, as well as some over-the-counter medications.
Psychological - Depression, anxiety, problems with self-esteem, anger, fear, and other mental conditions may lead to impotence.
Vascular Disease - Vascular diseases such as hardening of the arteries, or heart disease, can lead to reduced blood flow, thereby impairing the ability of the penis to become sufficiently engorged to maintain an erection.
