Male Reproductive System
Notes!
Vocabulary To Know!
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Urethra
Penis
Testicle or Testis
Scrotum
Vas deferens
Erection
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Semen
Sperm
Ejaculation
Seminal vesicles
Prostate gland
URETHRA
 Tube in center of penis
 Both urine and semen travel through it
PENIS
 Male sex & urinary organ
 Delivers semen during intercourse
TESTICLE or TESTES
 Male sex gland
 Produces sperm
 Produces the hormone testosterone
SCROTUM
 External pouch of skin--holds testicles
 Regulates temperature (keeps them cooler
than the rest of the body)
VAS DEFERENS
 Two tubes that connect the testicles to the
urethra
 Carry sperm and semen to urethra
ERECTION
 Spongy tissue in the penis fills with blood
 Penis becomes erect or stiff
Spongy
tissue
SEMEN
(not the same thing as sperm!)
 Fluid released/ejaculated by the penis
 Combination of fluids from the seminal
vesicles, Cowpers gland, and prostate gland
that mix with sperm to make…SEMEN
SPERM
 Male reproductive cells
 Contain male half of DNA needed to
reproduce
EJACULATION
 Semen is released from the penis
 Path of Semen:
– Epididymis
– Vas deferens
 Seminal vesicles add fluid
 Prostate gland adds fluid
– Urethra
– Ejaculation from penis
SEMINAL VESICLES
PROSTATE GLAND
COWPERS GLAND
 Seminal vesicles = make fluid that nourishes
the sperm on their journey and make most
of liquid in semen
 Prostate gland = make fluid that nourishes
sperm on their journey
 Cowpers gland = slippery fluid that helps
them pass through the urethra
Can you name the parts?
Seminal
Vesicles
Bladder
Prostate Gland
Vas Deferens
Rectum
Epididymus
Testes
Scrotum
Urethra
Penis
Male reproductive system!
Questions?