circle of Willis necklace | silver pp_render worn here as a 29

worn here as a 29 mm sterling silver pendant

microbiologists and molecular biologists teaching the central dogma

and trunk transfers down through each vertebral body

a coiled flagellum

circle of Willis necklace | silver pp_render worn here as a 29Circle of Willis necklace sterling silver If you have trained on stroke protocols, you know the circle of Willis before you know most other brain anatomy. The arterial ring at the base of the brain that provides collateral perfusion when one vessel is blocked. Thomas Willis described it in 1664, and it remains the key to understanding why some strokes are catastrophic and others are survivable. The Science Behind the Circle of Willis The circle of