Left internal jugular voin Right internal jugular vein 9 13 10 Left brachiocephalic vein Right subclavian - Accessory hemiazygos vein vein 11 Left broncho- mediastinal trunk Right brachiocephalic - vein 14 Right broncho- mediastinal trunk Superior vena cava Rib Hemiazygos vein Intercostal muscle Azygos vein Left lumbar trunk 12 Right lumbar trunk Intestinal trunk Inferior vena cava (d) Thoracic area, anterior view

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