Unlike embryonic stem cells, which are defined by their origin (cells from the preimplantation-stage embryo), the origin of adult stem cells in some mature tissues.
*Unlike bone marrow and cord blood, Human umbilical cord tissue is a rich source of mesenchymal stem cells. Umbilical cord tissue-derived.
Stem cells are basic cells that can become almost any type of cell in the body. Human stem cells can come from an embryo or an adult human.
Adult stem cells are undifferentiated cells, found throughout the body after development, that multiply by cell division to replenish dying.
1) From the body itself: Scientists are discovering that many tissues and organs contain a small number of adult stem cells that help maintain them. Adult stem.