Chapter 9
Male Reproductive System
Copyright © 2008, 2005 by Saunders, an imprint of Elsevier Inc. All rights reserved.
Learning Objectives



Name, locate, and describe the
functions of the organs of the male
reproductive system.
Define some abnormal conditions
and infections that affect the male
reproductive system.
Differentiate among several types of
sexually transmitted infections.
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Learning Objectives (cont’d.)



Define many combining forms used
to describe the structures of the this
system.
Describe various laboratory tests
and clinical procedures that are
pertinent to the disorders of the
male reproductive system, and
recognize related abbreviations.
Apply your new knowledge to
understanding medical terms in their
contexts, such as medical reports
and records.
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Introduction


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The male sex cell is called a
spermatozoon, or sperm cell.
The sperm cell carries its
nuclear hereditary material, or
chromosomes, in its head
region.
The tail consists of a flagellum,
which makes the sperm cell
mobile.
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4
Introduction (cont’d.)
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Only one spermatozoon out of
300 million sperm cells released
during ejaculation can fertilize a
single female ovum.
If more than one egg is present
in the fallopian tubes during
ejaculation, multiple
fertilizations are possible.
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
Fraternal twins. Notice the 6-weekold embryos in two separate
amnionic sacs

Twins resulting
from the
fertilization of
separate ova by
separate sperm
cells are called
fraternal twins.
Twins resulting
from the
fertilization of a
single egg by a
single sperm are
called identical
twins.
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Introduction


The organs of the male
reproductive system are
designed to produce and release
billions of sperm cells throughout
the man’s lifetime.
The hormone called
testosterone is responsible for
the bodily characteristics of the
male (such as beard, pubic hair
and deeper voice).
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Anatomy – page 313
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Anatomy (cont’d.)

Internal structure
of the testis and
the epididymis
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Anatomy (cont’d.)

The passage of
sperm from the
seminiferous
tubules to the
outside of the
body.
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Vocabulary page 315
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bulbourethral glands – pair of exocrine
glands near the male urethra
epididymis (pl. epididymides) – tightly coiled
tubes that carry sperm form the seminiferous
tubules to the vas deferens
Flagellum – hair like projection on sperm
that make it motile
fraternal twins – twins from two separate
ova fertilized by two different sperm.
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Vocabulary

identical twins – two infants
resulting from division of one
fertilzed egg into two distinct
embyros.
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Vocabulary – page 316
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prostate gland – exocrine gland in
men at the base of urinary bladder.
Secretes the fluid part of semen
Scrotum – external sac that
contains testes
Semen – sperm cells and seminal
fluid
spermatozoon (pl. spermatozoa)
– sperm cell
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Prostate Gland
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Vocabulary – page 316
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
testis (pl.: testes) – male gonad,
produces sperm and hormone
testosterone
Testosterone – hormone secreted by
testes responsible for male sex
characteristics
vas deferens – narrow tubes that
carry sperm from epididymis into the
body and toward the urethra.
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Vas Deferens
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COMBINING FORMS AND
TERMINOLOGY – page 317
Combining Form
Meaning
andr/o
cry/o
crypt/o
epididym/o
gon/o
hydr/o
male
cold
hidden
epididymis
seed
fluid/water
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COMBINING FORMS AND
TERMINOLOGY – page 318
Combining Form
Meaning
prostat/o
semin/i
prostate gland
semen/seed
terat/o
varic/o
vas/o
monster
varicose veins
vessel, duct; vas
deferens
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“monster tumor”

Teratoma – benign tumor occuring in
the testes
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Varicocele

Varicocele – a collection of varicose
veins above the testis
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Vasectomy is a surgical procedure in which
the vasa deferentia of a man are cut for the
purpose of sterilization.
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COMBINING FORMS AND
TERMINOLOGY- page 319
SUFFIXES
Suffix

Meaning
-genesis
formation
(spermatogensis)

-one
hormone

-stomy
new opening
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Pathologic Conditions- page
319-322
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Pathologic Conditions
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Sexually Transmitted Diseases
(STDs) – page 322
Common Infections
• chlamydial infection
• Gonorrhea
• herpes genitalis
• syphilis
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Laboratory Tests and Clinical
Procedures – page 324

Laboratory Tests
• PSA test – measures prostate-specific
antigen in the blood. Elevated levels are
associated with and enlarged prostate and
may be a sign of prostate cancer
• semen analysis – Sperm cells are
examined for motility and shape. The
number of sperm cells is also obtained.
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QUICK QUIZ:
2.
What does the PSA
test for?
A.
B.
C.
D.
Levels of infection
Sperm Mobility
Sperm Motility
Levels of an antigen
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Laboratory Tests and
Clinical Procedures
Clinical Procedures
• transurethral resection of the
prostate (TURP)
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Laboratory Tests and Clinical
Procedures
Clinical Procedures
• Vasectomy
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QUICK QUIZ:
3. What is the term that
means removal of the
prostate?
A. orchiectomy
B. prostatecomy
C. vasectomy
D. prostatitis
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ABBREVIATIONS
BPH
GU - genitourinary
HSV- herpes simplex virus
PID - pelvic inflammatory disease
PSA - prostate specific antigen
RPR – rapid plasma reagin, test for
syphilis
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ABBREVIATIONS
STI - sexually transmitted infection
TRUS – transrectal ultrasound test to
assess prostate gland
TURP - transurethral resection of
the prostate
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