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. Author manuscript; available in PMC: 2017 Sep 28.
Published in final edited form as: Cancer Lett. 2015 Oct 10;380(1):237–242. doi: 10.1016/j.canlet.2015.10.005

Figure 3. The circulatory path between the primary tumor and the bone metastatic site.

Figure 3

Oxygenated blood exits the heart through the arterial system (red arrows) to deliver oxygenated blood to the organs. Deoxygenated blood returns to the heart through the venous system (blue arrows) where it circulates through the lungs to become oxygenated and repeat the circuit.