title: Histological studies on the frontal ganglion of Periplaneta americana.
mesh_terms: D000818:Animals; D001370:Axonal Transport; D001369:Axons; D002467:Cell Nucleus; D003058:Cockroaches / Q000033:anatomy & histology*; D003593:Cytoplasm; D003594:Cytoplasmic Granules; D005724:Ganglia / Q000166:cytology*; D009474:Neurons / Q000166:cytology / Q000378:metabolism; D009489:Neurosecretion