Complex sentence: The striatum is a critical component of the motor and reward systems; receives glutamatergic and dopaminergic inputs from different sources; and serves as the primary input to the rest of the basal ganglia nuclei.
Split into simpler sentences: The striatum is a critical component of the motor and reward systems. It receives both glutamatergic and dopaminergic inputs from different sources, and serves as the primary input to the rest of the basal ganglia nuclei.