How are adult stem cells also called tissue stem cells?

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Diagram showing the locations of neural stem cells in brain regions such as the hippocampus and ventricles, and hematopoietic stem cells in the bone marrow and blood, with labeled illustrations of the brain, spinal cord, circulatory system, and skeleton. — stem cell Stem cells of neural and hematopoietic origin have tremendous potential in the development of therapies for certain diseases, such as diabetes and Parkinson disease. Neural stem cells occur in the spinal cord and in specific regions of the brain, and hematopoietic stem cells occur in the blood and bone marrow.

Adult stem cells are referred to as tissue stem cells because they reside within specific tissues and organs of the body, where they function as a source of replacement cells for those that wear out or become damaged through normal use or injury.12

Unlike embryonic stem cells, which can differentiate into any cell type, adult stem cells are typically found in niches within mature tissues—such as the bone marrow, the epidermis of the skin, and the lining of the small intestine—where they maintain the health and ongoing renewal of those specific areas.32