Blood Flow Pathway: Mitral Valve to Systemic Circulation and Return

Blood does not flow from the mitral valve to the tricuspid valve. The correct circuit:

1. Left atrium → mitral valve → left ventricle → aorta → systemic arteries → capillaries → systemic veins.
2. Superior/inferior vena cava → right atrium → tricuspid valve → right ventricle → pulmonary artery → lungs.
3. Pulmonary veins → left atrium (cycle repeats).

The mitral and tricuspid valves are on opposite sides of the heart, separating atrial and ventricular chambers in the systemic and pulmonary circuits respectively.