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. 2009 Feb 2;10(2):407–440. doi: 10.3390/ijms10020407

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© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 6. — Drosophila adult CNS and compound eye: a) Frontal view of the adult Drosophila brain. Highlighted are mushroom bodies and the central complex (yellow) as well as the optic lobes (green).b) Tangential section of a Drosophila compound eye reveals the highly stereotyped arrangement of ommatidia. Here the organization of photoreceptors for a single ommatidium is illustrated. Numbers 1–7 indicate the light-sensing organelles of the photoreceptors, called rhabdomeres. Photoreceptors R1-R6 have a longer rhabdomere and represent the outer photoreceptors, as they surround the inner rhabdomeres R7 and R8. In this section only R7 is visible as R8 sits directly underneath.