Page 9, Architecture of the Circulation, Dr. D. Penney



Location of Blood Volume (continued..)

As stated above, most of the blood at any given time is found in the large veins and venous sinuses (65%) (Figure 7.04). This is true for both the pulmonary and the systemic circulations, but particularly so for the latter. The capillary and arteriolar blood volumes are each quite small. The systemic circulation has 3-4 times the blood volume of the pulmonary circulation, since it constitutes most of the body mass (see Table 7.02).




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