2. Describe the parts and functions of the human
reproductive system.
At the end of this lesson, the given enabling competency should
be met by the students.
3. ● Discuss the parts of male reproductive system and their
respective functions, and
● Discuss the functions of male reproductive system that
differentiate it from female reproductive system.
4. While the female reproductive
system is designed not only to
reproduce gametes and
produce female hormones, it
also carries and nourishes an
offspring. The male
reproductive organs serve a
more distinct purpose
compared with that of a female.
5. The reproductive duty of
a male is to produce
gametes and deliver
them to the female
reproductive tract. The
organs themselves differ
in structure and
appearance.
6. What are the components
and functions of the male
reproductive system?
How do they differ from
that of the female
reproductive system?
7. Components: Testes
● The male reproductive
system has two testes.
● Their function is to produce
male sex cells called sperm
cells.
● The sperm cells develop
inside the seminiferous
tubules.
Seminiferous tubule
8. Components: Scrotum
● The scrotum is a bag of
skin that contains the
testes.
● It is a reproductive
structure that is located
under the penis.
The scrotum
9. • The scrotum is responsible for protecting the testes. It
helps with the thermoregulation of the testicles. It
keeps the temperature of the testis several degrees
below the average body temperature, which is an
essential factor for sperm production.
10. What is the role of seminiferous tubules and what
is the role of Leydig cells?
The chief function of the seminiferous tubules is
the production and transportation of sperm cells.
The main function of the leydig cells is to secrete
androgens such as testosterone.
11. Components: Scrotum
● Within the scrotum are
muscles known as the
dartos and cremaster
muscles.
● These play important roles
in maintaining the
temperature of the
scrotum. The scrotum
12. Components: Epididymis
● Mature sperm cells are later on
stored in a tube beside the testes
known as the epididymis. The
epididymis is a duct-like organ
that connects the testis to the
vas deferens
● The sperm cells are stored until
they are released from the body
through a process known as
ejaculation.
The male reproductive system
13. • SEMINAL VESICLES- are pair of lumpy exocrine glands
located posterior to the urinary bladder and anterior to the
rectum.
• main function of the seminal vesicles is to produce a fluid that
is high in fructose, a sugar that provides nutrients for sperm
cells, as well as other proteins, enzymes, and mucus. This fluid
is a major component of semen, and it accounts for about
50%–80% of semen volume.
14. Components:
● During ejaculation, the
sperm cells move from the
epididymis to a tube called
the vas deferens, then into
another tube known as the
urethra, and finally out of
the body.
The male reproductive system
15. • The vas deferens transports mature sperm to the urethra
in preparation for ejaculation.
• Urethra - this tube allows urine to pass outside the body.
16. • Contains smooth muscle tissue that can constrict to prevent
the flow of urine or semen.
• It produces a large portion of the fluid that makes up the
semen, this fluid is milky white in color and contains enzymes,
proteins and other chemicals to support and protect the sperm
during ejaculation.
PROSTATE
17. • The function of the penis is to deliver semen into vagina during
sexual intercourse.
SEMEN
Is the fluid produced by males for sexual reproduction.
SPERM CELLS
main function is to fertilize an egg during reproduction.
PENIS
18. • The process of producing sperm that takes place in the testes
and epididymis of adult males.
SPERMATOGENESIS
19. • The process by which a sperm combines with an oocyte (egg
cell) to produce a fertilized zygote.
FERTILIZATION
20. 1. The sperm attaches and binds.
2. Penetrates the outer corona radiata and
3. zona pellucida,when the sperm fuses
4. The eggs membrane , genetic material is released inside the
egg.
Fertilization occurs when the sperms genetic material eventually
combines with eggs genetic material.
STEPS IN FERTILIZATION
21. Vasectomy
● Vasectomy is a method of
birth control that deals with
cutting or blocking the tube
of vas deferens.
● This prevents sperm cells
from being transported out
of the body.
Vasectomy
22. Components: Penis
● The penis is the external part
of the male reproductive
system.
● It is a tube-shaped organ that
contains the urethra, which
allows it to pass the urine and
semen out of the body.
The male reproductive system
23. Circumcision
● Many cultures practice a
medical process known as
circumcision.
● This process involves the
partial or complete
removal of the prepuce
to expose the glans penis. Circumcision
24. Accessory Glands
● The male reproductive system also has a series of organs
known as the accessory glands.
● These glands secrete substances that aid in the nourishment
of sperm cells and contribute to higher chances of fertilization.
○ Examples of these are the seminal glands, bulbourethral
glands, and the prostate glands.
25. The Male Reproductive System
● The production, development, and maturation of sperm
cells occur in the male reproductive system.
● The primary male sex hormone is known as testosterone,
and it is produced by the testes.
● Another function of the male reproductive system is to safely
and properly deposit the sperm cells into the female
reproductive tract.
26. ● The male reproductive system
is composed of the testes, scrotum, epididymis, vas deferens, urethra, penis, sperm ducts,
and accessory glands.
● The gonads
of the male reproductive system are the testes. The male reproductive system consists of
two testes.
27. Write the word true if the given statement is correct or
false if otherwise.
1. Males have a significant amount of estrogen.
2. The exit points for urine and sperm are different.
3. The sperm ducts include the seminal vesicles and the
vas deferens.
1. Prostate fluid neutralizes acidity.
2. The scrotum is an internal organ.
28. ● The male reproductive system
is specialized for the production of sperm cells and their deposition into the female
reproductive tract.
● The functions of the male reproductive system
include the production, development, and maturation of sperm cells that occur in the male
reproductive system.
● The type of gametogenesis
that occurs in male organisms is known as spermatogenesis.
29. Slide 6. Sperm stained by Bobjgalindo is licensed under CC BY-SA 4.0 via Wikimedia Commons.
30. Bibliography
Concord-Carlisle High School. Reproductive System Grades 9-12, Lesson 2. Massachusetts: Concord-
Carlisle Regional School District, 2011. https://www.concordcarlisle.org/jreed/wp-
content/uploads/sites/37/2015/01/Reproductive-System-.pdf.
Heffner, Linda J., and Danny J. Schust. The Reproductive System at a Glance . 3rd ed. Singapore: Wiley-
Blackwell, 2010.
O'Donnell, Kerri. The Reproductive System. New York: Rosen Publishing Group, Inc., 2001.
“The Human Body.” In Reproductive System. Britannica Educational Publishing, 2011.
