Pumping Heart Demonstration Model 12″L x 11″W x 5″D

Easy-to-use, multi-sensory model uses a simple hand pump to demonstrate basic heart and pulmonary blood flow. Create a memorable exploration of how the heart and lungs work together for oxygen exchange. No mess – liquid is sealed in! Includes clearly labeled heart chambers, main artery, veins and lungs, plus activity guide. 12″ L x 11″ W x 5″ D.