Working Model of a Heart Pump (Explaining Blood Circulation)

Easy-to-use, multi-sensory model uses a simple hand pump to demonstrate basic heart and pulmonary blood flow.nCreates a memorable exploration of how the heart and lungs work together for oxygen exchangenFeatures clearly labeled heart chambers, main artery, veins and lungsnStays mess-free -- liquid is sealed innMeasures approximately 12""L x 11""W x 5""DnIncludes Activity GuidenGrades 3+