definition
| - A single, bilaterally paired mushroom body intrinsic neuron. Its large (~10um) cell body is located on the dorsal margin of the ventrolateral protocerebrum, in the lateral cell body region, between the anterior lateral superior clamp and the optic lobe. A single fiber projects dorsomedially towards the mushroom body and bifurcates into two branches (Tanaka et al., 2008). One merges with the middle antenno-cerebral tract at the lateral side of the calyx before entering and extensively arborizing over the calyx. The other branch enters the mushroom body in the medial region of the vertical lobes. Arborisations are found in the pedunculus, in the vertical and medial lobes of the mushroom body (Liu and Davis, 2009) and in the accessory calyx (Tanaka et al., 2008). This neuron is GABA-ergic (Liu and Davis, 2009), with pre-synaptic terminals found throughout the mushroom body lobes, being more pronounced in the alpha' and beta' lobes (Pitman et al., 2011). This neuron is electrically connected to the mushroom body dorsal paired medial cell (Wu et al., 2011).
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