The mushroom body-like structure and the cell body wrappers. A schematic figure and TEM images. A: Schematic figure showing the brain organization and associated nerves, dorsal view. The thick longitudinal line indicates the cutting site for Figure 8B. B: TEM images of small interneurons and a large neighbor neuron. The arrowhead indicates granule-rich cell. C, D: The small or large interneurons covered with glia (an arrowhead). E: The granule-rich axons from the small cells. F: The neuropil of mushroom body. G: Details of the mushroom body neuropil. H: The enlarged view of glial membranes of small cells. I: Granules in the neurons. ax, axons; ent, sensory axon entry region of the neuropil; gr, granules; gry, yellow color granules; lt, line type sensory neurons; mt, mitochondrion; neu, a large neighbor neuron; np, neuropil; nu, nucleus; tt1 an tt2, tuft type cell 1 or 2; mbc, mushroom body cells. Scale bar in B, D, G: 4 μm; C, E, F: 1 μm, H, I: 0.1 μm.