Friday, January 31, 2014

Stem Cells

stalking cells The history of research on openhanded infrastructure cells began about 40 years ago. In the 1960s, researchers find that the muddle marrow conducts at least two kinds of stem cells. uprightness race, called hematopoietic stem cells, forms all the types of blood cells in the body. A second population, called bone marrow stromal cells was detect a close to years later. Stromal cells are a mixed cell population that generates bone, cartilage, fat, and fibrous connective tissue. Also in the 1960s, scientists who were studying rats discovered two regions of the hit that contained dividing cells, which become nerve cells. Despite these reports, further about scientists believed that new nerve cells could not be generated in the adult brain. It was not until the 1990s that scientists agreed that the adult brain does contain stem cells that are able to generate the brains tercet major cell types astrocytes (star shaped neurological cel l) and oligodendrocytes, which are non-neuronal ce...If you regard to take a leak a full essay, run it on our website: BestEssayCheap.com

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