Ocellar retinula cell
FBbt:00004242
Photoreceptor cell of an adult ocellus. It expresses the violet-sensitive Rh2 (Jean-Guillaume and Kumar, 2022). Its axons are found proximal to its nucleus, and they target their corresponding ocellar ganglion (Caldwell et al., 2007). The lateral ocelli each have around 100 photoreceptor cells, whereas the medial one has around 75 (Dorkenwald et al., 2024). Some of these cells directly target the lobula or lobula plate (Jean-Guillaume and Kumar, 2022). These cells aid flight stabilization and augment the phototactic response (Jean-Guillaume and Kumar, 2022). They form simpler circuits with fewer connections before reaching the central brain, resulting in faster transmission of information (Jean-Guillaume and Kumar, 2022).
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