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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Adv Colloid Interface Sci. 2013 Jun 10;0:23–43. doi: 10.1016/j.cis.2013.06.002

Figure 3.

Figure 3

A functioning lymphangion.
  • Like veins, lymphatic afferent vessels, which are known as lymphangions, have one-way valves to prevent any backward flow.
  • Each angion is a segment created by the space between two sets of valves.
  • Smooth muscles in the walls of the lymphatic vessels cause the angions to contract sequentially to aid the flow of lymph toward the thoracic region.