Intrinsic neuron of the mushroom body. They have tightly-packed cell bodies, situated in the rind above the calyx of the mushroom body (Ito et al., 1997). Four short fascicles, one per lineage, extend from the cell bodies of the Kenyon cells into the calyx (Ito et al., 1997). These 4 smaller fascicles converge in the calyx where they arborize and form pre- and post-synaptic terminals (Christiansen et al., 2011), with different Kenyon cells receiving input in different calyx regions/accessory calyces (Tanaka et al., 2008). They emerge from the calyx as a thick axon bundle referred to as the peduncle that bifurcates to innervate the dorsal and medial lobes of the mushroom body (Tanaka et al., 2008).
Neuroblast of the dorsal central protocerebrum (Urbach et al., 2003) that produces larval Kenyon cells that have their cell bodies in a relatively dorsal cluster (Kunz et al., 2012). It also produces non-Kenyon cells (Kunz et al., 2012).
Neuroblast of the dorsal central protocerebrum (Urbach et al., 2003) that produces larval Kenyon cells that have their cell bodies in a relatively posterior cluster (Kunz et al., 2012). It also produces non-Kenyon cells, including a characteristic primary neuron that projects to the ventral nerve cord (Kunz et al., 2012).
Neuroblast of the central dorsal protocerebrum (Urbach et al., 2003) that produces larval Kenyon cells that have their cell bodies in a relatively ventral, lateral cluster (Kunz et al., 2012). It also produces non-Kenyon cells (Kunz et al., 2012).
Neuroblast of the ventral central protocerebrum (Urbach et al., 2003) that produces larval Kenyon cells that have their cell bodies in a relatively medial cluster (Kunz et al., 2012). It also produces non-Kenyon cells, including a characteristic type of primary neuron that exits the mushroom body pedunculus at the spur region and does not innervate the lobes (Kunz et al., 2012).