Stem cells basics animation

This stem cells animation explains about stem cell therapy. The important properties of stem cells are explained with this animation taken from university of Utah.
Note : this content is not owned by me. The link to the animation source about the stem cell therapy is given at the end of this description.
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Stem cells are biological cells found in all multicellular organisms, that can divide (through mitosis) and differentiate into diverse specialized cell types and can self-renew to produce more stem cells. In mammals, there are two broad types of stem cells: embryonic stem cells, which are isolated from the inner cell mass of blastocysts, and adult stem cells, which are found in various tissues. In adult organisms, stem cells and progenitor cells act as a repair system for the body, replenishing adult tissues. In a developing embryo, stem cells can differentiate into all the specialized cells (these are called pluripotent cells), but also maintain the normal turnover of regenerative organs, such as blood, skin, or intestinal tissues.

There are three accessible sources of autologous adult stem cells in humans:

Bone marrow, which requires extraction by harvesting, that is, drilling into bone (typically the femur or iliac crest),
Adipose tissue (lipid cells), which requires extraction by liposuction, and
Blood, which requires extraction through pheresis, wherein blood is drawn from the donor (similar to a blood donation), passed through a machine that extracts the stem cells and returns other portions of the blood to the donor.

Source of the article published in description is Wikipedia. I am sharing their material. © by original content developers of Wikipedia.
Link- http://en.wikipedia.org/wiki/Main_Page Animation source: Learn genetics, University of UTAH
Link- http://learn.genetics.utah.edu/conten...