1/8/10
DO Now: In your notebook….
1. List the two endocrine glands which are located in
the brain
2.What controls the pituitary gland?
3. What hormones are released from the pituitary
gland?
 When done go to page 173 and work on Male
Reproductive System study guide
1/9/10 DO Now: In your
notebook….
1. Make a chart or diagram that explains sperms
path of travel from the testes to the urethra.
2. The following should be included
1.
2.
3.
4.
5.
6.
Urethra
Vas deferens
Testes
Pituitary gland
Hypothalamus
Testosterone
3. Finish Study Guide pg 173
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.
#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.
 External
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, ect
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 he 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 prostrate 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, ect…
Sterility