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| Author(s): |
Adriana Rodrigues Ribeiro
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Faculdade de Medicina Veterinária e Zootecnia (FMVZ/SBD) |
| Defense date: | 2002-12-13 |
| Examining board members: |
Irvenia Luiza de Santis Prada;
Arani Nanci Bomfim Mariana;
Zenon Silva
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| Advisor: | Irvenia Luiza de Santis Prada |
| Abstract | |
Comparative Anatomy of mammals has been a relevant theme of researches in the biomedical and biological areas with the objective of looking for more information that can aid for searching on the understanding of the unit-variety complex. Among the simians, Baboon and Rhesus have been particularly focused, although they are not from the New World. The monkey Cebus apella, animal of the forests of the South American continent, being geographically distributed for almost the whole Brazil, presents satisfactory adaptation to the captive life showing a great easiness of reproduction. Thus, we intended to study the monkey Cebus apella, analyzing the origin, the composition and the resulting nerves of its brachial plexus. The immediate objective of this study was to add information to the knowledge of its Anatomy, seeking the supply of subsidies for anatomo-functional interpretations of Cebus apella comparatively to humans and domestic animals. Further, we propose to establish the anatomical pattern of this animal, culminating with the elaboration of an Atlas - text on the Anatomy of the monkey Cebus apella. Twenty adult animals, 10 male and 10 female, belonging to the collection of anatomical pieces of the Anatomy Laboratory of the Federal University of Uberlândia were obtained and prepared through fixation and dissection. The major nerves originating from the brachial plexus were: the suprascapular, the subscapular, the musculo-cutaneous, the radial, the median, the ulnar, the axillary, the thoraco-dorsal, the pectoralis major and the pectoralis minor. In the dissected specimens, the brachial plexus of Cebus apella was constituted by the roots from C5 to T1 (55,00 ± 11,12%), from C5 to T2 (25,00 ± 9,68%), from C4 to T1 (15,00 ± 7,98%) and from C4 to T2 (5,00 ± 4,87%). The ventral plan of the brachial plexus contributed for the formation of the following nerves: the phrenic, the subclavius, the pectoralis major, and the pectoralis minor. The medium plan originated the musculo-cutaneous, the median, the ulnar, and the forearm medial cutaneous nerves, while the dorsal plan originated the suprascapular, the subscapular, the axillary, the radial, thoraco-dorsal and the long thoracic nerves. In addition, the occurrence of pre- and post- fixation of the plexus as well as its cranial and caudal displacement have been discussed. In conclusion, the brachial plexus of Cebus apella constituted by the roots from C5 to T1 is organized in a simpler ventral plan, a medium plan of intermediate complexity and a more complex dorsal plan. (AU) | |