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Pumping Heart Model

Easy-to-use, multi-sensory model uses a simple hand pump to demonstrate basic heart and pulmonary blood flow.  Creates a memorable exploration of how the heart and lungs work together for oxygen exchange. Features clearly labeled heart chambers, main artery, veins and lungs. Stays mess-free — liquid is sealed in. Measures approximately 12″L x 11″W x 5″D. Includes Activity Guide. Grades 3+