. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. str. Gennari Fig. 8. Fig. 9. Fig. 8. Vertical section through the area striata in an adult human brain in a plane corresponding to that shown in Figure 5. Fig. 9. A section across the true calcarine sulcus (s. occ. praestriatus) in the human brain. The ventral lip only is formed of area striata. calcarine sulcus of the human brain thus forms the boundary between the striate visual cortex and the gyrus fornicatus: it is undoubtedly formed along the line of separation of two cortical areas of different physiological functions a
. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. str. Gennari Fig. 8. Fig. 9. Fig. 8. Vertical section through the area striata in an adult human brain in a plane corresponding to that shown in Figure 5. Fig. 9. A section across the true calcarine sulcus (s. occ. praestriatus) in the human brain. The ventral lip only is formed of area striata. calcarine sulcus of the human brain thus forms the boundary between the striate visual cortex and the gyrus fornicatus: it is undoubtedly formed along the line of separation of two cortical areas of different physiological functions as the result of their different rates of growth. It is in no sense homologous to the so-called "calcarine fissure of the Apes", in which its only true homologue is the insignificant sulcus limi- tans anterior areae striatae (sulcus praestriatus) buried in the anterior part of the great fossa striata (Fig. 7). Thus Cunningham's statement to the effect that there is no "posterior calcarine" (retrocalcarine) sulcus in the Apes but an exceptionally extensive "anterior calcarine" (i. e. true calcarine) is practically an inversion of the true state of affairs: the so-called "calcarine" sulcus in the Apes, is, in fact, most. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Anatomische Gesellschaft. Jena : G. Fischer
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