Left Atrium

Left Ventricle

Right Atrium

Right Ventricle

PulmonaryVeins

Oxygenated Blood

“From Lungs”

PulmonaryVeins

Oxygenated Blood

“From Lungs”

Bicuspid valve closes and prevents the

backflow of blood into the atrium

Left Atrio

ventricular V

alve

“Bicuspid”

Aortic Semilu

nar Valve

Oxygenated blood flows to the head, brain, and body. O2 diffuses across the membrane

and returns as deoxygenated blood.

Systemic Circulation

Inferior Vena Cava

Superior Vena Cava

Right Atrioventricular Valve

“Tricuspid”

Pulmonary Semilunar Valve

Pulmonarry

Trunk

Back to Lungs

Back to Lungs