Dr. Allevable takes you along on a tour of the bone and points out the role it plays in replacing old bone cells with new bone cells, a process that is called regeneration. The bone marrow, lies at the center of the bone and manufactures new cells that can become many types of tissue. Medical doctors study the process of regeneration and are developing a method that uses these new cells to help the body grow new bone.

Fueled by Regenerobot’s curiosity, Dr. Allevable also reveals the way in which damage to the heart can be healed. In order to fully explain the way that regenerative medicine can heal the heart, Dr. Allevable shows how the heart circulates blood, which carries oxygen and important nutrients, through the body and how the heart can be damaged. A heart attack happens when the cells in the heart don’t get enough oxygen. When these cells die off due to a lack of oxygen, the rhythm of the heart is interrupted. Doctors can use the new cells that form in the bone to help grow new tissue where the heart attack destroyed old tissue. With new tissue in place, the heart can begin to beat normally.

After these lessons, Regenerobot understands how regenerative medicine can help the human body live a longer, healthier life, and begins to think that maybe one day the human body will be as durable as his metal frame.
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