Macroanatomical aspects of the sacral plexus and its branches in sparrowhawk.

The present study was carried out to determine the plexus sacralis and its branches in sparrowhawk(Accipiter nisus). Fifteen sparrowhawk were used in this study. Following the anaesthesing of the materials, cavity of the body was opened. Animals were fixed with formaldehyde after draining of their bloods. The nerves of plexus sacralis were separately dissected and photographed. Plexus sacralis was formed by the union of the branches of the synsacral spinal nerves which leave from ventrolaterale of os lumbosacrale. The plexus consisted of six (4–9) synsacral spinal nerves in sparrowhawk(Accipiter nisus). The nerves originating from plexus sacralis from cranial to caudal were nervus coxalis caudalis, the common root of nervus peroneus and nervus tibialis, nervus cutaneus femoris caudalis and the common branches of rami musculares. It was determined that general macroanatomical shapes of plexus sacralis and the distribution of nerves originating from this plexus were found to be similar with the other bird species in hawk which is one of the predatory bird species. However, it was determined that responsible for innervation of the leg and foot nervus peroneus and nervus tibialis common root and terminal branches of these nerves were significantly thick and strong in appearance. [ABSTRACT FROM PUBLISHER]