Анатомия сегментальной иннервации кожи тазовой конечности некоторых домашних животных

Abstract

A segmental innervation was studied of the pelvic extremety skin of the cattle, sheep, pig and dog by means of inner-trunk preparation. The author described a segmental composition of the principal dermal nerves of the extremity, various forms of lumbosacral plexus in connection with the cranial and caudal shifts and with an increase of a number of lumbar vertebrae (a sheep and a pig). These peculiarities are one of the reasons of the individual variations in the extremity innervation. For each species of animals the axial nerves are established which comprise the base of innervation of the extremity skin: in cattle with the principal form the L6 is an axial nerve; with a caudal shift — SI; for a sheep and a pig with six lumbar vertebrae - L6 and SI; in a sheep with seven vertebrae — L7 and SI; in a pig — L6 and L7; in a dog with the principal form L7 is an axial nerve, with the cranial shift — L6.