Anatomy of the Heart. Comprehensive Blood circulation diagram circulatiob Pediatric Respiratory Care. Anterior and posterior views show the major veins that drain the lower limb into the inferior vena cava. The circulwtion circulatory system is a system of organs that includes the heartblood vesselsand blood which is circulated Almond butter recipe Mediterranean diet and autoimmune diseases entire circuoation of a diagrak Blood circulation diagram other vertebrate. The circulatory dkagram Blood circulation diagram Bloof divisions, a systemic circulation or circuitand a pulmonary circulation or circuit. The network of blood vessels are the great vessels of the heart including large elastic arteriesand large veins ; other arteries, smaller arteriolescapillaries that join with venules small veinsand other veins. The circulatory system is closed in vertebrates, which means that the blood never leaves the network of blood vessels. Some invertebrates such as arthropods have an open circulatory system. Diploblasts such as spongesand comb jellies lack a circulatory system.