Search results
20 kwi 2023 · In the anatomical position, the heart has five surfaces – each formed by the different chambers of the heart: Anterior (or sternocostal) – Right ventricle. Posterior (base of the pyramid) – Left atrium.
3 sie 2023 · The main reference points used for the surface projections of the heart are the borders of the sternum and costal cartilages, the clavicle and intercostal spaces. The latter favour sound transmission, facilitating clinical maneuvers such as percussion, auscultation and palpation to pinpoint the cardiac location.
3 lis 2023 · Key facts about the heart. Borders. Superior (atria, auricles), inferior (right and left ventricles), left (left auricle, left ventricle), right (right atrium) borders. Surfaces. Sternocostal (right ventricle), diaphragmatic (mostly right ventricle, portion of left ventricle), pulmonary (cardiac impression) surfaces.
The Surfaces and Borders of the Heart.
11 sty 2021 · The sharp angle formed mainly by the right ventricle and occupying the lower heart border is the acute margin of the heart. The rounded obtuse margin of the heart is formed mainly by the left ventricle to the left of the sternocostal surface.
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.
It is important to understand what comprises the borders of the heart because the heart is rotated to the left on its longitudinal axis within the mediastinum, so the apex is directed more postero-laterally.
