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Essay / Research Paper Abstract
This 3 page paper discusses the process involved in creating a viable pregnancy, from conception through implantation in the uterus. Bibliography lists 1 source.
Page Count:
3 pages (~225 words per page)
File: D0_HVSucPrg.rtf
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Unformatted sample text from the term paper:
basic biological functions that are common to all women. This paper considers the steps that occur from conception to implantation in the uterus. For conception to occur, a male spermatozoa
has to fertilize a female egg, so we have to start with the production of sperm and eggs. Most adult males "produce thousands of spermatozoa ... each second" (Robinson, 2005).
It takes approximately a month for the sperm to travel from the testicles where they are produced to the prostate gland, where semen is formed (Robinson, 2005). Thus one could
argue that conception begins at least a month before intercourse. When a woman ovulates, she produces "one mature ovum (egg cell)" that then travels toward the uterus through one
of the fallopian tubes (Robinson, 2005). At this point the egg is almost invisible, being approximately 1/100" in diameter (Robinson, 2005). While some people consider both sperm and egg to
be alive, many scientists feel this is not accurate: the sperm moves not by reasoning but by chemical reaction; and the egg does not have the ability to reproduce itself-it
needs the sperm for that to occur (Robinson, 2005). It is therefore interesting that two substances that do not meet the strictest parameters for "life" combine to create a living
organism. During intercourse the man ejaculates; for pregnancy to occur one of the millions of sperm will have to find the egg and penetrate its outer layer (Robinson, 2005). This
typically happens "in the outer third of one of the womans Fallopian tubes" (Robinson, 2005). When the egg has been fertilized, its surface "changes its electrical characteristics" in order to
prevent the entrance of any other sperm (Robinson, 2005). Shortly after fertilization, a "genetically unique entity is formed"; this is referred to as a "zygote" and is commonly called
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