The conversation between human and AI assistant.
What are the main parts of the circulatory system, and what function does each serve?
Yes, please. Can you explain how the heart pumps blood?
The heart pumps blood by using its four chambers to contract and relax in a rhythmic pattern. The right and left atria act as holding chambers for the blood, and the right and left ventricles act as the main pumping chambers. When the ventricles contract, they force blood out of the heart and into the blood vessels. The whole process is coordinated by electrical impulses that travel through the heart's conduction system.