what is myocardium
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- From Wikipedia, the free encyclopedia. Myocardium means heart muscle. The heart muscle's job is to push blood out to the entire body. Blood carries oxygen and many other important things to the body. Because every part of the body needs blood to live, the heart muscle is very important to a person's health. The heart muscle can become sick and weak.
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Pericardium For the footballer, see Vincent Pericard. The pericardium (from the Greek περί, around and κάρδιον, heart) is a double-walled sac containing the heart and the roots of the great vessels. The pericardial sac has two layers, a serous layer and a fibrous layer.It encloses the pericardial cavity which contains pericardial fluid.tructure Edit. The pericardium is a tough double layered fibroserous sac which covers the heart. The space between the two layers of serous pericardium (see below), the pericardial cavity, is filled with serous fluid which protects the heart from any kind of external jerk or shock.
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Myocardium of the Heart Myocardium is the muscular middle layer of the wall of the heart. It is composed of spontaneously contracting cardiac muscle fibers which allow the heart to contract. Heart contraction is an autonomic (involuntary) function of the peripheral nervous system.
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Pericardium - definition and function What is Pericardium, definition and function. Pericardium is a tough, two-layer membranous sac that encloses the HEART. The pericardium’s fibrous outer layer, called the fibrous pericardium, protects the heart from contact with the chest wall and other structures in the chest, including the LUNGS and the sternum.ts two surfaces are the parietal pericardium, which contacts the fibrous pericardium, and the epicardium, which covers the MYOCARDIUM somewhat like a wet tissue. Inside the envelope is a watery fluid that lubricates the heart.
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- The endocardium underlies the much more voluminous myocardium, the muscular tissue responsible for the contraction of the heart. The outer layer of the heart is termed epicardium and the heart is surrounded by a small amount of fluid enclosed by a fibrous sac called the pericardium.he endocardium is the innermost layer of tissue that lines the chambers of the heart.
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Heart 1 Thus, the epicardium is a thin layer of serous membrane that helps to lubricate and protect the outside of the heart. Below the epicardium is the second, thicker layer of the heart wall: the myocardium.  Myocardium. The myocardium is the muscular middle layer of the heart wall that contains the cardiac muscle tissue. Myocardium makes up the majority of the thickness and mass of the heart wall and is the part of the heart responsible for pumping blood. Below the myocardium is the thin endocardium layer.
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The Cardiovascular System Layers of the Heart. The wall of the heart has three layers: the outer epicardium ( epi - = on, upon; cardia = heart), the middle myocardium ( myo - = muscle), and the inner endocardium ( endo - = within, inward). The epicardium is the visceral layer of the pericardium . The majority of the heart is myocardium or cardiac muscle tissue. The endocardium is a thin layer of endothelium that lines the chambers of the heart and the valves. Pericardium. The pericardium (around the heart) is a triple-layered fluid-filled sac that surrounds the heart.
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Heart The middle layer of the heart wall is the myocardium, which is the cardiac muscle – a layer of involuntary striated muscle tissue surrounded by a framework of collagen. The myocardium is also supplied with blood vessels, and nerve fibers by way of the epicardium that help to regulate the heart rate.he heart functions as a pump in the circulatory system to provide a continuous circulation of blood throughout the body. This circulation consists of the systemic circulation to and from the body and the pulmonary circulation to and from the lungs.
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Endocardium The endocardium underlies the much more voluminous myocardium, the muscular tissue responsible for the contraction of the heart. The outer layer of the heart is termed epicardium and the heart is surrounded by a small amount of fluid enclosed by a fibrous sac called the pericardium.he endocardium is the innermost layer of tissue that lines the chambers of the heart. Its cells are embryologically and biologically similar to the endothelial cells that line blood vessels.
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Pericardium - definition and function The inner layer of the pericardium is a filmy envelope. Its two surfaces are the parietal pericardium, which contacts the fibrous pericardium, and the epicardium, which covers the MYOCARDIUM somewhat like a wet tissue. Inside the envelope is a watery fluid that lubricates the heart.he inner layer of the pericardium is a filmy envelope. Its two surfaces are the parietal pericardium, which contacts the fibrous pericardium, and the epicardium, which covers the MYOCARDIUM somewhat like a wet tissue. Inside the envelope is a watery fluid that lubricates the heart.
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- The pericardium (from the Greek περί, around and κάρδιον, heart) is a double-walled sac containing the heart and the roots of the great vessels. The pericardial sac has two layers, a serous layer and a fibrous layer.It encloses the pericardial cavity which contains pericardial fluid.he serous pericardium, in turn, is divided into two layers, the parietal pericardium, which is fused to and inseparable from the fibrous pericardium, and the visceral pericardium, which is part of the epicardium.
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Pericardium When the visceral layer of serous pericardium comes into contact with heart (not the great vessels) it is known as the epicardium. The epicardium is the layer immediately outside of the heart muscle proper (the myocardium). The epicardium is largely made of connective tissue and functions as a protective layer.
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Medical Definition of Endocardium Endocardium: The lining of the interior surface of the heart chambers. The endocardium consists of a layer of endothelial cells and an underlying layer of connective 'tissue.ndocardium: The lining of the interior surface of the heart chambers. The endocardium consists of a layer of endothelial cells and an underlying layer of connective 'tissue.
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Pericardium When the visceral layer comes into contact with heart (not the great vessels) it is known as the epicardium. The epicardium is the layer immediately outside of the heart muscle proper (the myocardium). The epicardium is largely made of connective tissue and functions as a protective layer. transverse section of the thorax, showing the contents of the middle and the posterior mediastinum. The pleural cavity and the pericardial cavity are exaggerated since normally there is no space between the pleurae or between the pericardium and heart. Pericardium is also known as cardiac epidermis.
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Heart The middle layer of the heart wall is the myocardium, which is the cardiac muscle – a layer of involuntary striated muscle tissue surrounded by a framework of collagen. The myocardium is also supplied with blood vessels, and nerve fibers by way of the epicardium that help to regulate the heart rate.ardiomyocytes, like all other cells, need to be supplied with oxygen, nutrients and a way of removing metabolic wastes. This is achieved by the coronary circulation. The coronary circulation cycles in peaks and troughs correlating to the heart muscle's relaxation or contraction.
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- [edit on Wikidata] The pericardium (from the Greek περί, around and κάρδιον, heart) is a double-walled sac containing the heart and the roots of the great vessels. The pericardial sac has two layers, a serous layer and a fibrous layer. It encloses the pericardial cavity which contains pericardial fluid.
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Pericardium When the visceral layer comes into contact with heart (not the great vessels) it is known as the epicardium. The epicardium is the layer immediately outside of the heart muscle proper (the myocardium). The epicardium is largely made of connective tissue and functions as a protective layer.he serous pericardium, in turn, is divided into two layers, the parietal pericardium, which is fused to and inseparable from the fibrous pericardium, and the visceral pericardium, which is part of the epicardium.
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What is the definition of myocardium? The myocardium is the middle layer of the walls of the heart, made of cardiac muscle, that contracts to push out blood.
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Definitions &Translations Definition. 1  Myocarditis is an inflammatory disease of the heart muscle (myocardium) that can result from a variety of causes. While most cases are produced by a viral infection, an inflammation of the heart muscle may also be instigated by toxins, drugs, and hypersensitive immune reactions.
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The Heart Key Points. 1  The pericardium is a mesothelium tissue of the thoracic cavity which surrounds the heart. 2  The inner layer of the pericardium, the serous pericardium, is further divided into two layers, an outer parietal layer and an inner visceral layer with the pericardial cavity in between the two layers.
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myocardium Myocardium. The thick middle layer of the heart that forms the bulk of the heart wall and contracts as the organ beats. Mentioned in: Angina, Antimyocardial Antibody Test, Cardiomyopathy, Pericardiocentesis.
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- 1 The pericardium is a thin membrane that surrounds and protects your heart, helps to prevent infection, and keeps your heart from expanding too much.  Pericarditis most commonly affects men between the ages of 20 and 50, but anyone can get it.
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Heart The middle layer of the heart wall is the myocardium, which is the cardiac muscle – a layer of involuntary striated muscle tissue surrounded by a framework of collagen. The myocardium is also supplied with blood vessels, and nerve fibers by way of the epicardium that help to regulate the heart rate.
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Myocarditis Myocarditis is an uncommon disorder. Most of the time, it is caused by an infection that reaches the heart. When you have an infection, your immune system produces special cells to fight off disease. If the infection affects your heart, the disease-fighting cells enter the heart. However, the chemicals made by these cells can also damage the heart muscle.
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Riya Popularity of the Name Riya. Riya is one of the most popular female names given to Indian-American baby girls. Overall, this is a low ranking name, but within the Hindu community specifically, Riya is a favorite. The name first appeared on the female naming charts in 2002 but resides at the very bottom of the charts.tymology & Historical Origin-Riya. Riya is a Hindu name (रिया) and means “singer” in Sanskrit. Because the name is Hindu in origin it is rarely used among English-speakers in the Western World. It is common among Indian immigrants to the West but it has yet to be adopted by the general population.
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- Definition of endocardium. plural. endocardia. play \ˌen-dō-ˈkär-dē-ə\. : a thin serous membrane lining the cavities of the heart.