Heart and Circulation

Animation of a red blood cell travelling around the circulatory system.

Interactive activities on the heart and circulatory system.

PBS site about the heart – includes animation of blood flow, heart facts, links and an interactive Shockwave heart transplant operation

Animations, diagrams, lessons and links on the heart and lungs

Contains information about blood, also games and quizzes. There is a “bloody bits” section with animations and information on circulation and the heart