title: Histology, histochemistry, and ultrastructure of neurosecretory cells in the optic lobe of the cockroach, Periplaneta americana.
mesh_terms: D000818:Animals; D003058:Cockroaches; D006651:Histocytochemistry; D009490:Neurosecretory Systems / Q000166:cytology*; D009899:Optic Lobe, Nonmammalian / Q000166:cytology*