Circulatory Videos Pick and Watch to learn more about your amazing body. 1. Robotic Surgery (8:43) - Learn how advances in technology have provided doctors with robots that actually help perform surgery. 2. Blood Testing (3:00)- Learn how blood is tested after it has been donated. 3. Blood Components (3:53) - Learn how the different parts of blood are separated. 4. Heart Surgery (1:39) - Short segment from Bill Nye video on heart surgery. 5. Journey of Donated Blood (4:54) - Highly recommend this video. Excellent description of blood donation and how donated blood helps others.