Contribucion de los ramos ventrales cervicales a la inervacion de los Mm. rhomboideus, serratus ventralis y trapezius en los mamiferos domesticos. Part I: perro, gato y cerdo

In consideration of the sparcity of data regarding the anatomic organization of the innervation of the Rhomboideus, Serratus ventralis and Trapezius muscles in the general veterinary literature, a study of the innervation of these muscles was carried out. This work was done in the dog, the cat and the pig. Nerves supplying these muscles were studied through gross dissection, and described in regard to their origin, distribution and termination. The conclusions present a discussion of the relationship of muscle innervation to the ascending and descending branches of the ventral rami of spinal nerves. The pattern of innervation is discussed in relationship to the embryologic development and function of these muscles.