Entire System of Circulation

Description

Centered in an anterior, semi-transparent torso, the heart occupies the middle mediastinum with the right atrium and right ventricle positioned to the subject’s right and the left ventricle forming the left cardiac border. From the superior aspect of the heart, the ascending aorta continues into the aortic arch, giving rise to the brachiocephalic trunk, left common carotid artery, and left subclavian artery, while the pulmonary trunk courses anterior to the ascending aorta before dividing toward the lungs. Venous return is traced by the superior vena cava receiving the right and left brachiocephalic veins, each formed by the internal jugular and subclavian veins at the root of the neck, with the axillary and brachial veins continuing distally into the upper limb. Clear laterality and depth cues keep arteries and veins separated without crowding. An anterior circulation map like this helps when teaching catheter paths and common central venous access routes, because it puts the subclavian and internal jugular veins in direct continuity with the brachiocephalic veins and superior vena cava. It also supports interpretation of cardiomegaly patterns and great-vessel contours on frontal chest radiographs, where the aortic arch, pulmonary trunk segment, and left ventricular border define much of the mediastinal silhouette. Small deviations in these relationships matter in aortic arch variants, pulmonary hypertension, or superior vena cava syndrome. Use this plate in gross anatomy and cardiovascular physiology modules to anchor flow direction, oxygenation status (blue venous pathways versus red arterial pathways), and named vessel transitions from proximal thorax to distal upper limb. It also suits clinical skills teaching on internal jugular versus subclavian line placement, as well as publisher layouts discussing coronary circulation and great-vessel anatomy in adult women with darker skin tones for representative medical education. Anatomical accuracy verified by SciePro's Medical Advisory Board.