The Biology of Sex

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The Biology of Sex
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(No Transcript)
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Female Reproductive System
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Eggsproduced in ovaries, reproductive cells in
females
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Each egg is released into the abdominal cavity
near the opening of one of the Fallopian Tubes.
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Fallopian Tubes connect the ovaries to the
Uterus
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Ovaries are the female reproductive glands that
produce the eggs/ovum
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Released eggs will be fertilized near the end of
the Fallopian Tube
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The trip down the Fallopian tube takes about
1-week as to get to the uterus, or the womb
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Wombpear shaped organ in which fetal dev.
occurs
http//video.about.com/pregnancy/Ectopic-Pregnancy
.htm
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• Inside the Uterus a lining of blood vessels
  other tissues forms each month.
• During menstruation, the lining sheds, taking an
  unfertilized egg w/ it.

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Cycle repeats every 28 days for 40 years
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The Male Reproductive System
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• Sperm are the Male Reprod. Cells
• Testis are the Male Reprod. Glandssperm
  originate here

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• Males begin producing sperm at puberty can
  continue for the rest of their lives
• 4-5 Hundred million sperm may be released at one
  timefrom that point it is survival of the
  fittest to see who reaches the egg. Usually,
  only 1 makes it.

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When sperm are expelled, they travel through
small tubes to the urethraa narrow tube through
the penis
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Circumcision
vs.
Vasectomy
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Lets see this in motionno, nothing gross!

• http//video.google.com/videoplay?docid8426132362
  44771366qconceptionhlen

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