Clinical Physiology of Circulation

Chief Editor

Leo A. Bockeria, MD, PhD, DSc, Professor, Academician of Russian Academy of Sciences, President of Bakoulev National Medical Research Center for Cardiovascular Surgery


Mechanisms of the dosed filling of all cardiac chambers with blood during each cardiac cycle

Authors: R. D. Kolesinskaya

Company:
S. D. Asfendiyarov Kazakh National Medical University, Ministry of Health оf the Republic of Kazakhstan; ul. Tole bi, 88, Almaty, 050000, Republic of Kazakhstan Kolesinskaya Raise Dmitrievna, MD, PhD, Associate Professor

E-mail: Сведения доступны для зарегистрированных пользователей.

UDC: 616.12-005-089:611.12

Link: Clinical Physiology of Blood Circulaiton. 2016; 13 (3): 154-165

Quote as: Kolesinskaya R.D. Mechanisms of the dosed filling of all cardiac chambers with blood during each cardiac cycle. Klinicheskaya Fiziologiya Krovoobrashcheniya (Clinical Physiology of Circulation, Russian journal). 2016; 13 (3): 154-65 (in Russ.).

Received / Accepted:  03.06.2016/07.06.2016

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Abstract

Objective. To study a role of the movement of partitions of heart (interventricular and both atrioventricular), as the mechanism which provides the dosed filling of cameras of heart by fractions of systolic volume and reserve volume. In work is investigated the role of system of venous return of a blood to heart in the dosed filling of cameras of the right half of heart by fraction of residual volume and in a regulation of duration of a cardiac cycle.

Material and methods. The provided data on a cardiac cycle, which are published in literature sources were comprehensively analyzed with use of own long-term experience of pilot studies of questions of cardiovascular system, laws of hydraulics, induction and deduction as methods of scientific knowledge.

Results. In work it was taped that each fraction of blood, being a part of final diastolic volume (systolic, reserve, residual and fraction of filling at the expense of a systole of auricles) fills heart cameras during the different periods and phases of a cardiac cycle. At the same time it is revealed that filling of each of the listed fractions is carried out by different mechanisms. The size of filling is in direct dependence on the size of a stroke output of a left ventricle and consequently at most reductions of its myocardium. During the research is taped also difficult mechanism framing pressure gradient for opening and closing of aortal and pulmonic valves.

Conclusion. The taped mechanisms of the dosed fractional filling of cameras of heart provide with a blood ability of heart to change in the wide range the size of a stroke output of a left ventricle in any cardiac cycle without disturbance of balance between arterial emission and venous filling. Damage of function or structures of the elements making the taped mechanisms involves loss of vital ability of heart to keep balance between volumes of arterial emission and venous return in each cardiac cycle that increases risk of development of serious complications of contractile action of the heart and in operation of its semi-lunar valves.


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