20. What are Stem Cells? Embryonic stem cells are undifferentiated cells that are unlike any specific adult cell. However, they have the ability to form any adult cell.
24. Potential Medical Advances A paraplegic rat may be the key to helping Christopher Reeves walk again!!! The actor was paralyzed from the neck down during a horse riding accident in 1995. The Washington University Researchers gave rats similar injuries, then injected some with embryonic stem cells. Six weeks later, the treated rats were walking again!!!