RT Book, Section A1 Mescher, Anthony L. SR Print(0) ID 1160662121 T1 The Circulatory System T2 Junqueira’s Basic Histology: Text and Atlas, 15e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781260026177 LK accessmedicine.mhmedical.com/content.aspx?aid=1160662121 RD 2021/04/21 AB The circulatory system pumps and directs blood cells and substances carried in blood to all tissues of the body. It includes both the blood and lymphatic vascular systems, and in an adult the total length of its vessels is estimated at between 100,000 and 150,000 km. The blood vascular system, or cardiovascular system (Figure 11–1), consists of the following structures: