The heart is a double pump
The heart is a double pump
In a double circulatory system, blood passes through the heart twice during one complete circuit. The right side supplies the pulmonary circulation, while the left side supplies the systemic circulation.
Step-by-step lessons on Edexcel GCSE Biology 8.2.3 Structure of the heart and circulatory system. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.