Arbor Vitae: Cerebellum Tattoo
This cerebellum tattoo was submitted by Matt Millard. One of the most unique anatomical tattoos I've seen yet.
The arbor vitae (Latin for "Tree of Life") is the cerebellar white matter, so called for its branched, tree-like appearance. It brings sensory and motor information to and from the cerebellum. [via Wikipedia]
See more at the Anatomy Tattoo Gallery.