Course and branching of the ascending aorta in a large gray goose (Anser griseo magna)

Abstract

Large gray goose (Anser griseo magna) – a common agricultural bird, this breed belongs to the meat-sucking group. This breed of geese is distinguished by a strong broad body, the muscles on their chest protrude strongly, the neck is of medium length with a small but very strong head, there is a strongly developed fat fold on the abdomen, the wings are very powerful, dense and massive. The feather of a large gray goose, on the upper part of the body has a gray color and white on the bottom. This breed is famous for its rapid growth and weight gain, when fed only with vegetable feeds, which greatly reduces the cost of feeding. The weight of this bird can reach 7-7.5 kg, literally in 5 months. These characteristics indicate that this bird has highly developed muscle and adipose tissue, for the growth and development of which a stable and proper blood supply is necessary, which is carried out by arterial vessels. Thanks to vascularization, all cells of tissues and organs receive the necessary substances for growth and development. Knowing this fact, we estab- lished the patterns of the course and branching of the ascending aorta in a large gray goose, and determined the morphometric parameters of the main arterial vessels of this collector. It was found that paired brachiocephalic arteries are not symmetrical, their diameter var- ies. The left brachiocephalic artery has a diameter 1.18 times larger than the right one. An interesting fact was that, at the level from the sixth to the third cervical vertebrae, the right and left common carotid arteries merge into one common trunk, and then again diverge into independent arteries. All other vessels have a fairly wide lumen and are well developed. Keywords: goose, large gray goose, aorta, ascending aorta, vascularization.