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Anatomical structure of the cutaneous blood supply

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The microanatomical structure of the cutaneous blood supply is arranged in a series of 1 to 3 cm cones, with the apex of each cone deep in the dermis at the site of an ascending arteriole. At the margins of each cone, the density of the arterial bed is less than in the central area, but the superficial venous plexus is more prominent. (Source: Hartig F, Reider N, Sojer M, et al. Right/left shunt. Front Physiol 2020;11:994. Copyright © 2020. Hartig, Reider, Sojer, Hammer, Ploner, Muth, Tilg, and Köhler. Creative Commons Attribution License [CC BY], https://creativecommons.org/licenses/by/2.0/legalcode.)