FRANCIS LEROY, BIOCOSMOS / SCIENCE PHOTO LIBRARY FRANCIS LEROY, BIOCOSMOS / SCIENCE PHOTO LIBRARY
Skin blood supply. Computer artwork showing the structure of the microscopic loops of blood vessels that supply the epidermis, the outer layer of the skin. The loops arise from larger vessels in the dermis. The blood vessels at the surface of the skin have a role in temperature regulation; dilating to increase heat loss from the body and constricting to limit heat loss.
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