Daily Archives: 22 Jun 2023

The function of the heart is to act as a blood pump for the circulatory system, providing continuous blood flow to the entire body. This circulation consists of systemic circulation…

The heart receives nerve signals from the vagus nerve and from nerves emanating from the sympathetic trunk. These actions influence, but do not control, the heart rate. Sympathetic nerves also…

Heart tissue, like all tissues in the body, needs a supply of oxygen, nutrients, and a way to get rid of metabolic waste. This is achieved through the coronary circulation,…

The heart wall consists of three layers: the inner, which is the endocardium, the middle, which is the myocardium, and the outer, which is the epicardium. These three layers are…

The left heart consists of two chambers: the left atrium and the left ventricle, which are separated by the mitral valve.[9] The left atrium receives oxygenated blood returning from the…

The right heart consists of two chambers, the right atrium and the right ventricle, separated by a valve, the tricuspid valve.[9] The right atrium receives most of the blood continuously…

The heart has four valves that separate its chambers. There is a valve between each atrium and ventricle, and a valve at the outlet of each ventricle.[9] The valves between…

The heart has four chambers, two upper chambers called the atria, which are the two chambers that receive blood, and two lower chambers called the ventricles, which are the two…

The human heart is located in the mediastinum, at the level of the fifth to eighth thoracic vertebrae. The heart is surrounded by a double-membrane sac called the pericardium that…

The heart[1][2](in English: Heart) is a muscular organ in humans and other animals that pumps blood through the blood vessels of the circulatory system.[3] Blood supplies the body with oxygen…