tooth of fan-shaped body [FBbt_00049146]

tooth of fan-shaped body

ID: FBbt_00049146

Protrusion of layer 1 of the fan-shaped body at its ventral margin (Wolff et al., 2015). There are seven distinct teeth resembling cogs, plus an additional two 'cryptic teeth', making a total of nine teeth (Wolff et al., 2015). The central tooth is most posterior, spanning both hemispheres, and it is flanked on each side by three prominent and increasingly anterior teeth (Wolff et al., 2015). The most lateral (cryptic) tooth in each hemisphere is the smallest and lies ventral and anterior to its nearest neighbor (Wolff et al., 2015). Each tooth corresponds to one of the nine columns defined by columnar neurons innervating the protocerebral bridge and fan-shaped body (Hulse et al., 2021).

The 'cryptic teeth' that are elusive in that they are not evident in nc82-labeled samples, but only in specimens with the right combination of labeled cells (Wolff et al., 2015).