FISHER, CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY FISHER, CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
Live and dead hair follicle samples. Light micrograph showing the hair follicles from a live human (left) and a deceased human (right). Hair is dead except for the follicles (roots), which have their own blood supply. When a person dies, the loss of blood flow and chemical growth factors stops cell proliferation in the follicle and leads to the decomposition seen on the right.
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