Semithin (1.5 µm) section along the midline of the fly's brain. Dorsal is up, anterior is right.

Get more information about:

• AC = antennal commissur
• CC = cervical connective
• MB = median bundle
• MO = median ocellus
• ON = ocellar nerve
• SOG = suboesophageal ganglion
• SPG = supraoesophageal ganglion
• etc.

Compare Ito's silver stained sagittal sections, especially his section 1.

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