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The heart is located in the thoracic cavity medial to the lungs and posterior to the sternum. On its superior end, the base of the heart is attached to the aorta, pulmonary arteries and veins, and the vena cava. The inferior tip of the heart, known as the apex, rests just superior to the diaphragm.
3 lis 2023 · The heart is a muscular organ that pumps blood around the body by circulating it through the circulatory/vascular system. It is found in the middle mediastinum, wrapped in a two-layered serous sac called the pericardium. The heart is shaped as a quadrangular pyramid, and orientated as if the pyramid has fallen onto one of its sides so that its ...
20 paź 2024 · The slight deviation of the apex to the left is reflected in a depression in the medial surface of the inferior lobe of the left lung, called the cardiac notch. Figure \(\PageIndex{1}\): Location of Heart in the Thorax.
The anterolateral and posteromedial papillary muscles are two strong papillary muscles within the left ventricle that anchor the two leaflets of the mitral valve (the valve between left atrium and ventricle consists of two leaflets).
2 paź 2024 · This tool provides access to several medical illustrations, allowing the user to interactively discover heart anatomy. Images are labelled, providing an invaluable medical and anatomical tool. The test mode allows instant evaluation of user progress. Atlas of human anatomy: Left ventricle, Left atrium, Anterior papillary muscle
Learning Objectives. By the end of this section, you will be able to: Describe the location and position of the heart within the body cavity. Describe the internal and external anatomy of the heart. Identify the tissue layers of the heart. Relate the structure of the heart to its function as a pump.
11 sty 2021 · Furthermore, the position of the cardiac septum at about 45º to the median brings the ‘right heart’ structures anterior to the ‘left heart’ structures (Figure 3A). The ventricles are situated inferior and leftward relative to their corresponding atria.
