Pre-Ejaculation

1
Pre-Ejaculation

• Whats the purpose of pre-ejaculatory fluid?
• If contraceptives are not used, can a woman
  become pregnant from pre-ejaculatory fluid?
• If a man has a vasectomy, can they still
  ejaculate? If so, what makes up the ejaculate?

2
Male Reproduction System

• Function to produce a sperm cell
• Male reproduction cell
• Sperm cell unites with a female egg (ovum) to
  form a fertilized ovum
• Production starts at puberty (ages 12-15)
• Testosterone causes the testes to produce sperm
• Spermatogenesis produce sperm for the rest of
  his life

3
External Male Reproduction Organs

• Testes male sex glands, manufacture the male
  sex hormone testosterone and produce male
  reproduction cell sperm
• Scrotum sac that hold the testes.

4
Testes

• Seminiferous tubules sperm is produced in this
  section of the testes
• 500 million each day
• Epididymis stores newly produced sperm
• 64 days for sperm to fully mature

5
Penis

• Tubelike organ that functions in sexual
  reproduction, sexual pleasure and elimination of
  body wastes.
• Erections blood fills three cylinders which
  surround the urethra
• Ejaculation release of reproduction fluids
• Penis size varies from male to male

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Circumcision

• Fold of skin that covers the end of the penis
  (born with)
• Surgical removal of the foreskin

7
Internal Male Reproductive Organs

• Vas Deferens a long tube that connects the
  epididymis with the urethra
• Seminal Vesicles Two little pouches just above
  and either side of the prostate gland, they
  secrete a fluid that mixes with sperm- the fluid
  travels down the ejaculatory duct to mix with the
  sperm
• Prostate Gland below the bladder and surrounds
  the urethra, secretes a milky and alkaline fluid
  that mixes with sperm (size of a chestnut)
• Cowpers Gland glands that open into the
  urethra, secrete a clear and sticky fluid that
  will cleanse the urethra of acid from urine
• Urethra tubelike organ that travels through the
  penis and leads to the ejaculatory ducts, passage
  way for sperm and urine
• Semen mixture of fluids from the seminal
  vesicles, prostate gland and Cowpers gland

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Concerns about the Male Reproduction System

• Nocturnal Emissions
• Hernia pushing of a part of the body through
  the muscle wall that normally contains it
• Inguinal hernia weak spot in the abdominal wall
  near the top of the scrotum. Part of the
  intestine may push through

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Concerns

• Sterility weak or malfunctioning sperm
• Temperature changes
• Certain chemicals
• Smoking
• Contracting mumps as an adult
• Untreated STDs
• Faulty operation of epididymis, vas deferens, or
  urethra

10
Concerns

• Testicular Cancer
• 1 of all cancer
• 15-34 years of age

11
Concerns

• Prostate
• Cancer
• Prostate gets bigger and blocks the urethra or
  bladder
• 2nd most common type of cancer in men