Dissection of the neck and thorax, deep dissection to show heart and blood vessels, in situ. Anterior thoracic wall and neck muscles divided and removed, lungs removed to show heart, aorta, subclavian and carotid arteries, superior vena cava and brachiocephalic veins. Pericardium divided and partly removed. Trachea and laryngeal cartilages partly visible. Male cadaver, anterior view.