Systemic and Pulmonary circulation e The McGraw-Hill Companies. inc Permission required for reproduction or display co。O Tissue Pulmonary capillaries Circulation to circulation tissues of head (to lungs Lung cO2 Lung capillaries 2 Systemic circulation (to body) Right side Left side of heart of heart Circulation Tissue capillaries to tissues of lower bod cO OSystemic and Pulmonary Circulation