title: Histological study of secretory structures of nemerteans subjected to stress. III. Cephalic glands.
mesh_terms: D000818:Animals; D006651:Histocytochemistry; D009420:Nervous System / Q000166:cytology; D009424:Nervous System Physiological Phenomena; D009490:Neurosecretory Systems / Q000166:cytology / Q000502:physiology*; D013045:Species Specificity; D013194:Staining and Labeling; D013312:Stress, Physiological