![](https://webarchive.library.unt.edu/eot2008/20090511022952im_/http://www.cancer.gov/images/spacer.gif) |
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![](https://webarchive.library.unt.edu/eot2008/20090511022952im_/http://www.cancer.gov/images/spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090511022952im_/http://www.cancer.gov/images/spacer.gif)
| Sistema compuesto de glándulas y células que producen hormonas que se liberan directamente en la sangre y circulan a los tejidos y órganos de todo el cuerpo. El sistema endocrino controla el crecimiento, el desarrollo sexual, el sueño, el hambre y la forma en que el cuerpo usa los alimentos. |
![](https://webarchive.library.unt.edu/eot2008/20090511022952im_/http://www.cancer.gov/images/spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090511022952im_/http://www.cancer.gov/images/gray_spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090511022952im_/http://www.cancer.gov/images/spacer.gif)
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![](https://webarchive.library.unt.edu/eot2008/20090511022952im_/http://www.cancer.gov/images/spacer.gif) |