Origem do plexo braquial e seus nervos em quatis (Nasua nasua Linnaeus, 1766)

Abstract

The coati is a procionidae foun in American cerrado. It is as animal with little morphological features, characterized by the neural system. The objective of this work was to study the origin and distribution of the brachial plexus of this taxon. Five adult specimens were dissected, however, without a definitr age, donated by IBAMA or collected dead on the banks of higways. The specimes were fixed in aqueous formaldehyde solution, 10% and kept immersed the same solution before and dissection. The formationof the brachial plexus occurred between the ventral branch of the fifth cervical spinal nerve (C5), to the first thoracic (T1), origined the nerves supraescapular, subescapulares (cranial e caudal), toracodorsal, axilar, radial, musculocutâneo, mediano, ulnar e peitorais (cranial e caudal) and distributed in the neck, chest and forelimb.