has soma location has soma location glutamatergic neuron hilar mossy cell 2026-05-21T10:51:40Z dentate hilar mossy cell A dentate gyrus neuron with soma in the polymorphic layer (Scharfman & Myers, 2012), capable of glutamate secretion as a neurotransmitter (Scharfman & Bernstein, 2015). Distinguished by a large multipolar soma, thorny excrescences on proximal dendrites, and commissural/associational axon projections terminating in the inner molecular layer of the dentate gyrus (Scharfman & Myers, 2012). In rodents, serves as a major excitatory neuron of the dentate hilus providing feedback excitation to granule cells (Sun et al., 2017). mossy cell dentate gyrus neuron dentate gyrus polymorphic layer