Horizontal Silver Section 5: z = -6.8

z = -6.8

Click on inline image to retrieve larger annotated version (approx. 100k)

The antennal lobe glomeruli (ant. lob. gl) have characteristic forms at characteristic positions, as evidenced by their bilateral symmetry. Bodian stains also reveal some details of output neurons, the uniglomerular projection neurons (ant. gl. pj. n), which send axons to the calyces of the mushroom bodies, to the lateral horn of the protocerebrum, and other second order olfactory neuropils. At this level, certain posterior glomeruli (p. ant. gl) appear to have a special relationship with the mid-brain, being linked to it via the fascicle of the antennal lobe (fasc. ant. lo) which extends just lateral to tritocerebral lobe neuropil (tr. lob). This is situated caudal to the antennal lobes and will come to flank the oesophagous at the next +z levels. Immediately behind the oesophagous are bundles of axons originating from ascending fibres of the ventral nerve cord, which can be followed through the next levels into the median bundle. Here they are indicated as the "root" of the median bundle (r. m. bdl). The maxillary suboesophageal commissure (max. su. oes. c) links neuropils of the ventro-lateral deutocerebrum (v-l. deut) from which arise bundles of descending neuron axons (dn) to the ventral nerve cord. Ventrolateral deutocerebrum is supplied by projection neurons from the lobula. Postero-ventral optic glomeruli (foci; p-v. op. gl) of the deutocerebrum receive terminals of output neurons from the lobula plate.

NJ Strausfeld,, I Vilinsky, and LC Hansen, ARLDN, Tucson

Flybrain    Atlas    Silver Sections    Horizontal Silver Sections    Horizontal Section z=-6.8

All contents are copyright © 1995-2000 Flybrain or their original publication (as noted).
Copyright and use policy

AC00080