Where Am I? [Science Tattoo]

Patrick, a research specialist in a computational memory lab, writes,

Yesterday, I got my first science tattoo — and first tattoo period — taking inspiration from you and the lovely people in the Science Tattoo Emporium.

Mine is a hippocampal neuron: specifically, a pyramidal cell found in area CA1. It's been implicated in spatial memory, which is something my lab works on. (In rodent EEG, hippocampal "place response" has been seen in this type of neuron.)  But more than that, I find it to be one