Which of the following does not belong to the structure of the mediastinum ()
A. Thoracic catheter
B. Aorta
C. Trachea
D. sternum
E. Thymus
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The structure in front of the upper mediastinum is ()
A. Left and right brachiocephalic veins
B. superior vena cava
C. Trachea
D. Aortic arch
E. Thymus
Ductus arteriosus triangle ()
A. Located above the aortic arch
B. The anterior boundary is the left vagus nerve
C. The posterior boundary is the left phrenic nerve
D. Pulmonary artery trunk
E. There is a left recurrent laryngeal nerve and arterial ligament
Pericardial cavity ()
A. Located between fibrous pericardium and serous pericardium
B. A recess is formed in certain areas, the pericardial sinus
C. The transverse pericardium is located between the superior and inferior vena cava
D. The pericardial effusion first accumulates in the pericardial transverse sinus
E. None of the above
The structure located in front of the esophagus is ()
A. Odd vein
B. superior vena cava
C. Left atrium
D. Chest catheter
E. Right atrium
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