|MadSci Network: Anatomy|
A tissue is generally defined as a group of similar cells, working together to perform a specific function. An organ is defined as a group of tissues working together to perform a more complex function. This definitions work well for the middle school/junior high school level, but as in many other cases, may not tell the complete truth. Blood is generally considered to be a tissue. There's a lot of information out there on the web, but much of it is for medical professionals and, as such, is far above the level of the general public. The best I can do for you is to direct you to two Encarta articles, http://encarta.msn.com/find/Concise.asp?z=1&pg=2&ti=761554781 and http://encarta.msn.com/find/Concise.asp?z=1&pg=2&ti=761557840 The different parts of blood don't really work together. They are found in the same place (blood vessels such as arteries and veins) but they act seperately. Hope this answers your question. Your mad scientist, S. Kohler
Try the links in the MadSci Library for more information on Anatomy.