Transcript Document 7401528

Introduction
#1
 A period of sexual development during
which males and females become
sexually mature and able to produce
children.
 Between ages 10-15, a males
hypothalamus gland tells the pituitary
gland to send hormones to the two
testes.
Puberty
#2 Name the Changes that occur to a boy
during
puberty
1. Facial/Body
Hair
2. Deep voice
3. Larger muscles
4. Longer bones
5. Sperm production
Puberty
Structure and Function
 3. The
______organs
store, nourish,
and transport
sperm cells
 Internal
External
4. The _____organs produce,
store, and release sperm.
Testes/Testicles
Testes/Testicles
 6. The testes have two functions. They
produce the male sex hormone___________?
 Testosterone
This hormone is responsible for maturing the
reproductive organs and for the development
of a male’s secondary sexual characteristics
1. Facial hair
2.Body hair
3.Deep voice, etc.
Testes/Testicles
7. The testes also produce
________.
Sperm=Male sex cell
Scrotum
 8. The testes hang outside the body
within a sac called the ___________
 Scrotum
Scrotum
 9. The temperature in the scrotum must be
________ than the body temperature for
sperm to form and survive.
 Lower
 Muscles in the scrotum move the testes
closer or farther away from the body to
maintain this temperature.
Epididymis
 10. This is located on the ______of each
testis
 Back
 11. Sperm are stored here for ____to ____
days.
 2-4
Vas Deferens
12. This serves as a tube that leads
from he epididymis to the urethra.
Vas Deferens
 Vasectomy: a form of male
sterilization where the vas deferens
are cut and tied to prevent sperm
from meeting the egg.
 It is a permanent form of birth
control.
Urethra
 14. The urethra is a tube that carries_______ and
_______ from the body.
 Urine and Sperm
 It is a passageway located within the penis.
 During erection, the bladder is closed so that no
urine will be eliminated during ejaculation.
Seminal vesicle
 15. This organ creates a fluid that
provides ________ for active sperm.
 Energy (sugar) nutrient
 IT makes up the majority of semen
Cowper’s Gland
(bulbourethral gland)
 Two Small pea shaped structures located
on either side of the man’s urethra and
beneath the prostate gland
Cowper’s Gland
 16. The fluid from this organ________ the urethra.
 Lubricates (wets)
 It is sometimes called ________fluid.
 Precoital
 It__________ the acid of the urethra.
 Neutralizes (eliminates)
17.Prostate Gland
 The Fluid from the prostate gland_______the sperm as
it travels in the female reproductive tract.
 PROTECTS
 It neutralizes he acid of the vagina. It is also a
frequent cancer site in the older male.
 *2nd most common
Penis
 18. The penis is the external sex organ through
which sperm leaves the body.
 19. The tip of the penis is known as the
_______.
 Glans
 It is covered by a ___________.
 Foreskin
Penis
 ____________= is the removal of the foreskin.
 Circumcision
 Two Reasons to have it done?
 1. Religious(jewish faith)
 2. Health
 3. Cultural
21. Bladder
This organ stores urine.
It receives urine from the
kidneys through the ureter
tube.
Other Terminology….
 22. A condition in which the penis
becomes larger and firm?
 Erection
23.
 A fluid that is released from the erect
penis during ejaculation.
 Semen
 It is made up of:
 Sperm
 Prostate Gland Fluid
 Seminal Vesicle Fluid
???= ejection of semen from the
penis??
Ejaculation
25. An ejaculation contains about
360-400 million sperm cells.
26. Once a male reaches puberty,
millions of sperm are produced
daily.
 27._________= an erection and
ejaculation during sleep.
 Noctural Emission
 It is also called a ______?
 Wet dream
 28. The lifespan of sperm cell once it
leaves the penis is__________?
 72 hours
 29. There are two sperm types. They are
labeled as ______ and _______.
 X and Y
 If an X sperm cell unites with the egg, a
______ baby will occur.
 Girl
 If a Y sperm cell unites with the egg, a
BOY baby will occur.
 30. The union of sperm and egg in order
for reproduction to occur?
 Also called conception.
Fertilization
31. When a person is unable to
reproduce.
Some of the causes are
environment, stress, drugs,
mumps, etc…
Sterility