A Blossom Pericyte: Created by Dr Elisa Avolio at the University of Bristol, this image shows a particular cell called pericytes, which surround and support our blood vessels to make them stronger. The red flower is made by peculiar pericytes, and the filaments you can see are specialised contractile fibres. These allow the contraction of blood vessels, helping to pump the blood in the heart. The circles in the background are pericytes that do not contain the specialized contractile fibres
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