projections from several brainstem structures are described , including : griseum centrale ( gct ) , medial and lateral reticular formation ( frm and frl ) , area ventralis of tsai ( avt ) , n. annularis ( anl ) , locus coeruleus ( loc ) , and the avian homologue of the raphe nucleus , n. linearis caudalis ( lc ) .
C0006121
brainstem structures
C0023951
locus