Morphology of the right septomarginal trabecula of an Anglo-Nubian goat

Abstract

The right transverse muscle is located in the cavity of the right ventricle and performs a number of vital functions, namely, as part of the synoventricular system of the heart, it participates in conducting a nerve impulse to the interventricular septum and lateral wall of the right ventricle; contributes to the elimination of blood during contraction of the right ventricle, and also prevents excessive stretching of the cavity of the right ventricle when it is filled with blood during diastole.

The study of the right septomarginal trabecula of the heart of an Anglo-Nubian goat was carried out on the basis of the Department of Animal Anatomy of the St. Petersburg State University of Veterinary Medicine. The dated material was delivered from the farm of the Moscow region of the Russian Federation "Gzhelpodvorie. To determine the growth rate, the material under study was divided into three age groups. A total of 15 animal corpses were taken.

During the study, the following techniques were used: fine anatomical preparation, morphometry, as well as the manufacture of histological preparations. For histological examination, heart tissue was fixed in a 10% solution of neutral formalin for 24 hours, after which it was embedded in paraffin according to the generally accepted method. Then sections were made with a thickness of 5-7 μm. For microscopic examination, sections were stained with hematoxylin and eosin. Morphometry of the right septomarginal trabecula was performed using an electronic caliper "Tamo professional" with a graduation of 0.05 mm.

In our work, we established the features of the histological structure of the right septomarginal trabecula, established the morphometric data of the right septomarginal trabecula in the age aspect, and determined its main growth rates. Also in our work, we provide topographic data on the anatomy of the right transverse muscle in an Anglo-Nubian goat.