Correctly label the following anatomical features of the thoracic cavity. (Not all words will be used.) Left lung Apex of heart Parietal pleura Fibrous pericardium Superior vena cava Interior vena cava Aorta Pulmonary trunk Base of heart Correctly label the following external anatomy of the anterior heart. (Not all terms will be used.) Right atrium Right ventricle Left atrium Left ventricle Right auricle Coronary sulcus (a) Anterior view