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Human Reproduction

Human Anatomy, Physiology, and Medicine. Anything human!

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Human Reproduction

Postby KRAEs10 » Sun May 03, 2009 11:57 pm

I'm creating an eight page story for class, and I was wondering if anyone had any ideas or opinions on how I can go about doing this.

I'm trying to include all the steps:
-stages of meiosis
-gametes
-zygotes
-development of fertilized eggs
-etc.

Thanks to anyone willing to help!
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Postby Darby » Mon May 04, 2009 12:13 am

Doing it in order could be good, and covering the basics of your topics and then how humans do it somewhat differently might be interesting.
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Re: Human Reproduction

Postby sanjidcapa » Mon May 04, 2009 7:48 am

Hi man,
Chemicals found in everyday products such as food packaging, upholstery and carpets may be associated with infertility in women, according to researchers at the University of California-Los Angeles School of Public Health.

Doctors studied the chemicals, perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA), in 1,240 women from the Danish National Birth Cohort, which includes nearly 100,000 women and their children. The chemicals also have been found in non-stick cookware, pesticides, clothing and personal care products, as well as industrial surfactants and emulsifiers, according to the study released Wednesday night in Human Reproduction.

Thank you.
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Re: Human Reproduction

Postby narayan » Tue May 05, 2009 7:01 am

Hi,

Production of offspring by humans. Human reproduction is an example of sexual reproduction, where the male produces sperm and the female eggs. These gametes contain only half the normal number of chromosomes, 23 instead of 46, so that on fertilization the resulting cell has the correct genetic complement. Fertilization is internal, which increases the chances of conception; unusually for mammals, pregnancy can occur at any time of the year. Human beings are also remarkable for the length of childhood and for the highly complex systems of parental care found in society. The use of contraception and the development of laboratory methods of insemination and fertilization are issues that make human reproduction more than a merely biological phenomenon.
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