MSN

Medium spiny neurons (MSNs) are named after their numerous dendritic spines. They have analogues in the mammalian striatum which project to other basal ganglia nuclei, and are therefore also referred to as spiny projection neurons (SPNs). MSNs are part of the direct and indirect pathways. In our Area X dataset, MSNs are the smallest adult neuronal cell type, but also the most abundant: 94.4% of the adult neurons analysed were MSNs.

putative neurotransmitter: GABA

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