MALE REPRODUCTIVE
SYSTEM
Mr. Van Saders
Penis
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External organ that functions in _____ reproduction,sexual pleasure and
__________ of waste.
Made up of ___ ________ like spongy tissues that fill with blood causing
the penis to become enlarged firm and _____. This is called an
_____________.
_______: tube coming from the bladder going through the penis. Both
semen and urine travel through the urethra but not at the ________
________.
The penis may be ½ inch to 4 inches long in the ______ _______ (flaccid)
state and 4 inches to 8 inches when the penis is erected.
• Why could products like Viagra be dangerous for the man?
Priapism is prolonged and painful erections that lasts for several hours.
– Blood is unable to leave the penis and loses oxygen. This can cause
scaring in the penis causing impotents. In the hospital the doctor will
drain the penis with a needle and give him medicine.
________ penis is at the end of the penis. It has a thinner tissue membrane
and is more sensitive.
____________ is a loose fold of skin the covers the Glands Penis.
_______________ is the surgical removal of the foreskin
• Why is this surgery done?
Scrotum
Loose bag of ________ outside the body that holds the
_______ in place.
Regulates the of the ____________ testes.
How does the scrotum accomplish this?
Provides protection from disease and the elements.
During puberty it will become ________, cover with
fine pubic hair and become ____________.
Testes
• 2 oval shaped _______ that are made up of 1000’s of
threadlike structures called ______________ tubules. They
are tightly packed tubes inside each testis.
• Tubules produce _______ cells by the millions each day and
_________ in a mans life time.
• Cells in the testes also produce _________ that changes a
boy into a man.
• When their combined length is put together they stretch
several ___________ yards.
• During fetal development the testes are inside the males
body and lower ___ months before birth.
• Testes must be slightly _______ than body temperature to
produce sperm cells.
Sperm Cells
• There are 3 parts to a sperm cell.
– _______ that contains the nucleus. Only the head of the sperm
cell unites with the egg cell.
– _______ or connecting piece.
– ______ which is its guiding mechanism.
The sperm may live ______ plus or minus days inside the female.
_____ of the sperm cells may be deformed or unable to fertilize
an egg. Sperm count has been slowly decreasing in recent years.
Up to _______ million sperm cells may be released during one
ejaculation. ½ teaspoon to 1 _________ of semen is released.
___________ sperm cells can fit on the head of a pin.
Why would a pin hole in a condom be a problem?
Epididymus
• A coiled like _____ about 15 to 20 feet long found at the
upper back side of the testes closest to the males body.
• How many epididymis’s does a male have?
• Sperm cells are temporarily stored in the epididymis where
they _________.
• It take 6 to 8 weeks for sperm to mature.
• A nerve response tells the epididymis to release the sperm
cells when the male reaches _______, climax or sexual
peak.
• The sperm cells go from the epididymis into the ______
__________.
• The man can _____ the epididymis on the back of his testes
Vas Deferens
• The Vas Deferens is also called the ______ ______.
• Tube leading from the epididymis going up into the
males body where it meets the ________ ______.
• The sperm enter the ejaculatory duct inside the
__________ gland.
• The male has _____ Vas Deferens.
• The sperm move through the Vas Deferens by the
movement of _____ (small hair like structures) and
muscle contractions.
• The vas deferens is between ___________ inches in
length.
Seminal Vesicles & Prostate Gland
• The male has _____ seminal vesicles that releases a mucus
like substance that provides _________ which enables the
sperm cells to live inside the females body.
• Sperm cells can go into the seminal vesicles from a previous
ejaculation.
• Why does the male have two – testes, epididymis, vas deferens
and seminal vesicles?
• The Prostate Gland is just below the _________ and is the
size of a chestnut.
• It releases fluids that combine with the sperm cells and
seminal fluid and is called __________.
• The Prostate Gland fluids have a _____ or ________ that
neutralizes the acid environment inside the female.
Cowper's Glands
• Cowper's Glands are also called the ____________
ducts and release cowpers fluids or ____________
fluids.
• They release their fluid ______ the male ejaculates.
• The male does not have __________ over the
release of cowpers fluids.
• Sperm may enter Cowpers Glands causing
accidental __________ if the couple is not using
birth control before there is any contact between
the ______ and vulva.
Bladder, Rectum and Anus
• The Bladder, Rectum and Anus have no
___________ role in the male.
• A valve at the base of the ___________ closes when
the male reaches orgasm preventing urine and
semen from mixing during ejaculation.
• Why would this be harmful?
• The rectum is the last portion of the _______
_______ where solid waste is stored.
Concerns of the Male Reproductive System
• Hernia
– When a ________ ________ pushes through the structure that is holding it in.
– ____________ Hernia is when a portion of the intestines pushes through an abnormal
opening or weakening of the abdominal wall and into the groin or scrotum . The
intestines can go into the scrotal sac.
• Sterility
– Sperm of the males is weak, malformed, sparse or nonexistent.
– Common causes - Temp changes, smoking, untreated STD, faulty operation of other
organs in the male reproductive system.
Descended Testis or Partially Descended Testis
When a testis does not lower or does not completely lower into the ______ ____. This
could be pre-cancerous and surgery may be necessary.
Concerns of the Male Reproductive System
• Nocturnal Emission (wet dreams)
– The releasing of _________ during sleep is normal. The male is producing
hormones and this is the bodies way adjusting to these changes during
sleep. He may get erection that may or may not be related to what he may
be dreaming. It is normal to or not to have these emissions.
• Testicular Cancer
– This is one of the most common cancers in men 30 years old. It occurs when cells in
the testicle divide _____________ and form a tumor. Testicular cancer can spread to
other parts of the body, but if it's detected early, the cure rate is excellent. All guys
should perform testicular self-examinations regularly to help with early detection.
Check for lumps, change is size or consistency of one of the testis, fluid or blood in
the scrotum, and pain or ache in the lower abdomen and groin.
• Problems of Prostate
– Increase in size can block urethra and bladder causing frequent urination,
pain or discomfort, blood in the urine. Only prevention is an exam by a
doctor. _______ of the men over 50 will have some kind of problem with
their prostate gland. Prostate cancer is the second most common form of
cancer in men after lung cancer. Signs are frequent or painful urination,
blood in the urine. The best test is a _______ test for Prostate Cancer.
Label These on the Diagram
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Testes
Epididymis
Penis
Vas Deferens
Seminal Vesicles
Prostate Gland
Urethra
Bladder
Scrotum
Seminiferous Tubules
Glands Penis
Foreskin
Cowpers Glands
Rectum
Male Reproductive system
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