What are non-embryonic stem cells?
A stem cell is a type of cell that, under specific conditions, or provided certain chemical signals, can turn itself into different cell types that make up a human, such as nerve cells, heart cells, skin cells, blood cells, and others. Non-embryonic stem cells come from human beings. They are called non-embryonic because they do not come from embryos, but can be obtained from umbilical cords (after a baby is born) and from adults, such as those found in bone marrow.