The difference between cardiac arrest and a heart attack - people often use the terms interchangeably, but they're not the same!
An X-ray explained! I love this!
Labelled Figure of the Circulation of Blood Through the Heart
The Four Heart Valves. Mitral and Tricuspid valves and the aortic and Pulmonic Valves
Anatomy of the Heart: Blood flow through the Heart and the Heart Valves involved.
Fun infographic about the heart valves, part of the incredible cardiovascular machine by Texas Heart Institute.
Blood Flow Through The Heart - http://www.NurseFuel.com
tetralogy of fallot - Google Search