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Sperm

Sperm

The male reproductive system creates sperm that is manufactured in the seminiferous tubules within each testicle. The head of the sperm contains the DNA that, when combined with the egg's DNA, will create a new individual. The tip of the sperm head is the portion called the acrosome, which enables the sperm to penetrate the egg. The midpiece contains the mitochondria that supplies the energy the tail needs to move. The tail moves with whip-like movements back and forth to propel the sperm towards the egg. Sperm have to reach the uterus and the fallopian tube in order to fertilize a woman's egg.






Review Date: 2/5/2008
Reviewed By: Peter Chen, MD, Department of Obstetrics & Gynecology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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