Posterior view of a transparent heart highlighting the coronary vessels.

Medial view of the right lung showing the pulmonary veins (purple) and the bronchi (gray).

Right lateral view of a transparent heart highlighting the coronary vessels.

Anterior view of the heart with pericardium and great vessels.

Lateral view of the torso region showing the skeletal and circulatory structures.

Anterior view of the cubital fossa showing the muscles, veins, tendons, arteries, and nerves.

Anterior view of the lungs, pulmonary arteries and veins, and bronchi with their innervation by the vagus and phrenic nerves.

Anterior view of thoracic area of male chest showing lungs and heart within ribcage. Left: tear in tracheobronchial tree has caused air to move into pleural space.

Valves of proximal part of femoral and great saphenous veins, anterior view. A. Structure of valves. The valve is usually composed of two cusps and permits blood flow toward the heart, but not in the reverse direction.

Sternocostal surface of heart and vessels in situ. L. A. D. (left anterior descending branch of left coronary artery).

Anterior view of thoracic area of male chest showing lungs and heart within ribcage. Left: tear in tracheobronchial tree has caused air to move into pleural space. Right: syringe aspirates air from pleural space to allow lung to reexpand.

Medial view of the mediastinal (medial) surface of the left lung showing respiratory bronchi and cardiac vessels.

Anterior view of a heart showing the branching of the coronary veins.