Spare Parts for People

Series: Cool Science

Legs, hands, hearts, eyeballs—today we can replace all kinds of human body parts! Learn how doctors can take an organ from a healthy person and put it in the body of a sick person. Or how they can give bionic legs and arms to people who have lost their limbs. Or how a miniature telescope can help a blind person see. You'll be amazed at some of the inventions science and medicine have come up with, from synthetic blood to artificial hearts!