Figure 5.

Absence of perisomatic synaptic contacts from VAChT-containing boutons on external tufted cells. (A) Low-power magnification view of the periglomerular region of the glomerular layer under electron microscopy showing VAChT-containing boutons close to the soma of an external tufted cell (T; dotted line). The square bouton is magnified in the panel (B). (B) The VAChT-containing bouton does not form synaptic contacts on the soma of the external tufted cell. Glial lamellae separate the plasma membranes of the VAChT-containing axon and the external tufted cell (arrows). Scale bar: 2 μm.