Journal
JOURNAL OF MEDICAL PRIMATOLOGY
Volume 50, Issue 1, Pages 9-20Publisher
WILEY
DOI: 10.1111/jmp.12495
Keywords
Neotropical primates; capuchin monkey; brachial nerves; shoulder nerves; morphology of recent groups
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The brachial plexus of the capuchin monkey is mainly formed by the ventral roots of the cervical and thoracic nerves, similar to that of Callithrix and baboons, possibly due to their quadrupedal nature.
Background The capuchin is a neotropical primate that presents easy reproduction in captivity and is used in scientific research. The objective of this work was to describe the structure and the branching pattern of the brachial plexus of the capuchin and to compare the results with data from the literature for humans, chimpanzees, baboons andCallithrix. Methods Twelve specimens were used: eight males and four females. No animals were killed for the purpose of this study. Results The brachial plexus ofSapajussp was constituted mainly from the ventral roots of the last four cervical spinal nerves, from C5 to C8, mainly, and the first thoracic nerve (T1). Conclusions The pattern of formation of the brachial plexus of the capuchin monkey was more similar to that ofCallithrixand baboons, perhaps because they are the only primates in this study to be essentially quadrupedal.
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