Learn more about the anatomy of human heart using these hands-on human heart diagrams! In these organ diagrams, the parts of heart are explained in pictures. The first one posted below is the labeled human heart diagram.
The heart is located in the thoracic cavity medial to the lungs and posterior to the sternum. The diagram above is the human heart diagram which uses different colors to show different parts and also labels a number of important heart component such as the aorta, pulmonary artery, pulmonary vein, left atrium, right atrium, left ventricle, right ventricle, inferior vena cava and superior vena cava among others. In the following human heart diagrams, you’ll see that the heart wall is made of 3 layers: epicardium, myocardium and endocardium. The epicardium is the outermost layer of the heart wall and is just another name for the visceral layer of the pericardium. 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.
These human heart diagrams use different colors to show different parts and also labels to show a number of important heart component such as the aorta, pulmonary artery, pulmonary vein, left atrium, right atrium, left ventricle, right ventricle, inferior vena cava and superior vena cava among others. There are four chambers in human body’s heart: the right atrium receives blood from the veins and pumps it to the right ventricle; the right ventricle receives blood from the right atrium and pumps it to the lungs, where it is loaded with oxygen; the left atrium receives oxygenated blood from the lungs and pumps it to the left ventricle; the left ventricle pumps oxygen-rich blood to the rest of the body.
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