The Circulatory System

Mr. Anderson explains the circulatory system, highlighting its importance in transporting oxygen, carbon dioxide, and nutrients. He discusses different circulatory systems in organisms, heart chambers, and circulation loops. The video covers blood flow, heart function, blood composition, and the cardiac cycle. It concludes with the heart's electrical system and the importance of maintaining heart health.

How does blood flow through the heart?

What role do valves play in the circulatory system?

What is the significance of the sinoatrial node in the heart?

What happens during a heart attack?