MALE REPRODUCTION

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MALE REPRODUCTION

• BY CHERI SCHEER

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OBJECTIVES

• SCIENCE 7-11 Students will explain the organs of
  the reproductive system.
• curriculum

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Overview
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Internal organs
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Testes

• Produces testosterone and sperm cells
• Located in scrotom

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Epididymis (2)

• Attached to testis
• Store sperm

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Vas deferens

• Passage from epididymis
• Curves around bladder
• Also known as sperm duct
• Extra storage

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Ejaculatory duct

• Contains seminal vesicle
• Receives sperm from the vas deferens

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Seminal vesicle

• Adds nourishing fluid for the sperm
• super vitamins

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Prostrate gland

• Below the bladder
• Adds protective fluid
• Without fluids the sperm would die in the vagina
• Semen is sperm and this protective fluid

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Cowpers gland

• Each side of urethra
• Secrete fluid that precedes the main semen flow

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Urethra

• Extends through the penis
• Final passage way for semen
• Ejaculatory duct empties here
• Urine and semen do not pass through at the same
  time

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External organs
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Scrotum

• Pouch of wrinkled skin
• Hangs below pelvic area to regulate temperature
• Sperm only produced when testes are 2 degrees
  below body temperature

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Penis

• Hangs in front of the scrotum
• Contains spongy tissue with many blood vessels
  that fill with blood when the male is sexually
  stimulated causing penis to stiffen and enlarge
  (erection)
• Ejaculation-discharge of semen (sperm and fluid)
  about 1 teaspoon of semen contains 200-300
  million sperm cells

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Review
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Diagram
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References

• Instructional Fair 1990

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Career areas

• Physician
• Parent
• Teacher
• Counselor
• Daycare provider