title: [Cytoarchitectonics of the frontal area fields of the cerebral cortex in the hamadryas baboon and the rhesus macaque in ontogeny].
abstract: Structural organization of the fields 8, 9, 10, 11, 12, 47, 44 + 45 + 46 has been studied in Papio hamadryas and in Macaca rhesus during pre- and postnatal periods of development. Volumes of the fields, size of the cells, thickness of the cortex and its layers have been defined. Not only certain similarities, but some essential differences have been revealed in the development of the fields mentioned. The differences are manifested in complicating the frontal area of the Papio hamadryas cerebral cortex during the second half of the intrauterine life and occurring mainly at the expense of the anabolia modus (appearance of the fissure asymmetry, predominance of pyramidal cells, appearance of the field 46, increasing size of the cells, increase in the cortical thickness and in the field volumes). They are also seen in the maturation rate of the frontal area fields--more accelerated in Macaca rhesus and decelerated in Papio hamadryas.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D005625:Frontal Lobe / Q000166:cytology* / Q000196:embryology / Q000254:growth & development; D005865:Gestational Age; D008251:Macaca / Q000033:anatomy & histology*; D008253:Macaca mulatta / Q000033:anatomy & histology*; D010215:Papio / Q000033:anatomy & histology*
vernacular_title: Tsitoarkhitektonika poleĭ lobnoĭ oblasti kory bol'shogo mozga u paviana gamadrila i makaka rezusa v ontogeneze.