The main image of this popular chart features cutaways of the interior structures of the anterior view of the heart (which is shown sitting on the diaphram). Anterior view, posterior view, section of heart wall, valves, heart valves, coronary arteries are all illustrated. The cardiac cycle, blood pressure, and cardiac conduction are defined. 3 dimensions let you feel texture and form 3D images make it easy and fun to learn about the body Hole at the top of the chart for easy wall hanging Bold titles Clear, easy-to-read labels Lightweight plastic will last indefinitely Heart chart will stand up on an easel Embark on a new dimension of learning...Transcending the world of 2 dimensions, our charts now exist in the third dimension. A hand-chosen group of our medical and anatomical charts are now available in a 3-dimensional format. Adding a third dimension to the illustrations heightens the reality and vividness of the image, and adds significance to the information. Each Heart Poster measures 18" x 25" and is made of durable, lightweight, non-toxic, recyclable p