|The heart has been deflected to more clearly show the major vessles associated with it. Deoxygenated
blood enters the right side of the heart and leaves via the pulmonary artery
(1). Upon leaving the heart the pulmonary artery
divides with one branch going to the left lung and the other going to the right lung. Oxygenated
blood returns to the left side of the heart in the pulmonary vein
(2). After passing through the left side of the heart
the oxygenated blood flows into the aorta which
arches above the heart. Branchs off the aorta carry
oxygenated blood to distant regions of the body.
The pulmonary artery is the only artery that contains blue latex and the pulmonary vein is the only vein that contains red latex.
Back to heart
Back to organs
Back to respiratory system
Return to tutorial