[Architectonics of the arteries of the latissimus dorsi muscle in humans and dogs].

Vascularisation of musculus latissimus dorsi in man and dog was studied in 50 preparations. Methods of x-ray angiography, preparation and macro-microscopy of cleared preparations were used. The nutrition of the muscle was stated to carry out at the expense of the thoracodorsal artery and of the musculocutaneous branches of the intercostal arteries. Vascular-neuronal "gate" of the muscle is projected on the upper third of its lateral portions. A rich network of intrasystemic and intersystemic anastomoses makes it possible to switch off one or several sources of additional nutrition for the muscle. The most favourable conditions of blood supply exist for the muscle lateral portions which are reasonable to use for plastic purposes.