Basal ganglia substantia nigra

The main projections of the DRN and the MRN ascend through the forebrain within the median forebrain bundle. The basal ganglia, substantia nigra, and amygdala are mainly innervated by the DRN, whereas MRN axons project densely to the basal forebrain, septal nuclei, thalamus, posterior hypothalamus, LDT, and DRN. The hippocampus receives an overlapping innervation from the DRN and the MRN (Hensler et al, 1994 Vertes et al, 1999) (Table 9.1). 

KEY WORDS Basal ganglia substantia nigra ventral tegmental area striatum globus pallidus subthalamic nucleus limbic system. 

Substantia nigra A basal ganglion located in the midbrain. 

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