This medical illustration series depicts the circulatory, or cardiovascular, system. Structures include the heart and arteries: internal carotid, external carotid , vertebral, common carotid, subclavian, brachiocephalic, ascending aorta, axillary, brachial, celiac trunk, renal, superior mesenteric, ulnar, common iliac, radial, internal iliac, external iliac, femoral, popliteal, anterior tibial and posterior tibial artery. Also includes veins, as well the internal jugular, external jugular and common hepatic veins.