Male Reproductive System Notes!

Vocabulary To Know!  Urethra  Penis  Testicle or Testis  Scrotum  Vas deferens  Erection  Urethra  Penis  Testicle or Testis  Scrotum  Vas deferens  Erection  Semen  Sperm  Ejaculation  Seminal vesicles  Prostate gland  Semen  Sperm  Ejaculation  Seminal vesicles  Prostate gland

URETHRA  Tube in center of penis  Both urine and semen travel through it  Tube in center of penis  Both urine and semen travel through it

PENIS  Male sex & urinary organ  Delivers semen during intercourse  Male sex & urinary organ  Delivers semen during intercourse

TESTICLE or TESTES  Male sex gland  Produces sperm  Produces the hormone testosterone  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)  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  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 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  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  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  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  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 Urethra Penis Scrotum Testes Epididymus Rectum

Male reproductive system! Questions?