there are weaker or more diffuse projections to the rostral locus coeruleus ( cell group a8 ) , the compact portion of the pedunculopontine tegmental nucleus , the central grey and intercollicular region , the ventral area of tsai , the medial spiriform nucleus , the nucleus subrotundus , the anterior preoptic area , and the diagonal band of broca .
C0007634
cell
C0007610
nucleus