Comparative anatomical study of the leg's nerves of Cebus (barbed capuchins) with baboons, chimpanzees and modern humans

Abstract

Pesq. Vet. Bras. 32(Supl. The anatomical comparative studies among the primates are important for the investigation of ethology, evolution, taxonomy, and comprehension of tools by hominoids. Especially the anatomical knowledge of Cebus contributes to conservation of the species, and to development of surgical procedures and clinical treatments of these animals, as they frequently are victims of automobile accidents. Recent anatomical studies came to a wrong conclusion regarding behavioral traits of Cebus, ascribed to few data available in previous literature. Therefore, to provide anatomical data and to support the other sciences related to anatomy, and to develop surgical and/or clinical procedures, we described the nerves of the legs of Cebus foccusing on their position and trajectory, as wll as innerved muscles, and compared these results with those of humans and other primates. Eight adult capuchin specimens were used for this study. The anatomical comparative study of the leg's nerves of Cebus demonstrated that, in general, structural organization of the nerves is similar among the four primates analyzed here (Cebus, chimpanzees, baboons and humans), which might be attributed to the fact that the all four primates have similar body structures. However, nerve trajectory and muscles innervation in Cebus was more similar to baboons. vimento de procedimentos cirúrgicos e tratamentos clí-nicos destes animais, pois são frequentemente vítimas de acidentes automobilísticos. Recentemente, estudos sobre características comportamentais de Cebus indicaram conclusões erradas sobre sua anatomia, o que pode ser atribuído aos poucos dados disponíveis sobre a anatomia desses animais na literatura especializada. Portanto, para fornecer dados anatômicos e fornecer suporte para as outras ciên-cias relacionadas com a anatomia e também desenvolver procedimentos cirúrgicos e/ou clínicos, foram descritos os nervos das pernas de Cebus com enfoque sobre a posição, a trajetória e os músculos inervados, e comparar esses resultados com os dos humanos modernos e outros primatas. Oito espécimes adultos de macacos-prego foram usados para este estudo. O estudo anatômico comparativo dos nervos da perna de Cebus demonstrou que, em geral, a organização estrutural dos nervos é semelhante entre os quatro primatas aqui analisados (Cebus, chimpanzés, babuínos e humanos modernos), o que pode ser atribuído ao fato de

Comparative Anatomy of the Hind Limb Vessels of the Bearded Capuchins (Sapajus libidinosus) with Apes, Baboons, andCebus capucinus: With Comments on the Vessels' Role in Bipedalism

“…Few descriptions are related to the nervous system of the hind limbs [14, 15]. It is not surprising that the anatomical descriptions available of the lower limbs that support the data about its bipedalism focusing mainly on muscles and bones, although these structures are supplied by the arterial system.…”

“…There are numerous studies about Sapajus behavior, cognition, and bipedalism [ 1 – 5 ], but the anatomical descriptions of these species are scarce in scientific literature and the majority of those works concentrate on thoracic limbs [ 6 – 13 ]. Few descriptions are related to the nervous system of the hind limbs [ 14 , 15 ]. It is not surprising that the anatomical descriptions available of the lower limbs that support the data about its bipedalism focusing mainly on muscles and bones, although these structures are supplied by the arterial system.…”

Comparative anatomy of the brachial plexus and shoulder nerves of the Sapajus

“…Studies on the anatomy of nerves are important for the treatment of animals that need to undergo clinical and surgical procedures 10 and for comparative studies among primates, especially when they are carried out with New World primates whose evolutionary taxonomic studies are incipient 5 …”

“…As Sapajus is increasingly present in urban areas, they are more prone to accidents. 10 Thus, anatomic data of these primates may also be useful in their therapeutic, clinical and surgical handling in research laboratories 31 and veterinary clinics. 10 On the other hand, comparative anatomical studies among primates are important for ethology, for evolutionary taxonomic research and for the understanding of the use of tools by hominids.…”

“…10 Thus, anatomic data of these primates may also be useful in their therapeutic, clinical and surgical handling in research laboratories 31 and veterinary clinics. 10 On the other hand, comparative anatomical studies among primates are important for ethology, for evolutionary taxonomic research and for the understanding of the use of tools by hominids. 8 Specifically, knowledge of the anatomy of Sapajus contributes to the conservation of these animals, to the development of surgical procedures and to clinical treatment, since they are often victims of accidents in the urban environments in which they live.…”