HEART AND CARDIOVASCULAR SYSTEM
Keywords:
Heart, atria, ventricles, apex, base, cardiac cycle, systole, diastole, pericardium, endocardium, myocardium, epicardium, sinus node, conductive system, ventricular systole, isometric contraction, semicircular valves.Abstract
This article provides an in-depth explanation of the human heart's anatomy, functions, and its vital role in the circulatory system. It details the heart's structure, describing its four chambers (two atria and two ventricles), its location, and variations based on age, gender, and body structure. The article also explores how the heart's size and position can change, particularly in infants and children, and how it adapts in individuals engaged in physical labor or sports. Additionally, it explains the heart's cardiac compartments, valves, and their role in blood circulation.
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