Figure 7.

Model of the larval mushroom body. A, B, 3D reconstruction of the MB of a third instar larva in frontal and dorsal view (available online as supplemental Movie S1, available at www.jneurosci.org as supplemental material). C, The larval MBs comprise three types of KCs: embryonic-born γ neurons, larval-born γ neurons, and larval-born α′/β′ neurons. D, E, Organization of the larval vertical and medial lobe. Apart from the calyx and pedunculus, eight different MB subdomains are defined by the innervation of MBENs and non-KC MBINs: V3 (tip of vertical lobe), V2 (shaft of vertical lobe), V1 (base of vertical lobe), M1 (medial part of the medial lobe), M2 (lateral part of the medial lobe), spur (s), medial appendix (ma), and lateral appendix (la).