Heart and Circulation Simulation

IGCSE Biology — The Cardiac Cycle and Double Circulation

Double Circulation Pathway
Right Ventricle Pulmonary Artery Lungs Pulmonary Vein Left Atrium Left Ventricle Aorta Body Vena Cava Right Atrium
Oxygenated blood
Deoxygenated blood
Valve open
Valve closed
72 BPM
Click a heart structure
Click on any chamber, vessel, or valve on the diagram to learn about it.
Cardiac Cycle Phase
Diastole
Heart Rate
72 BPM
Stroke Volume
70 mL
Cardiac Output
5.04 L/min
Blood Pressure
120/80 mmHg