What is correct about the description of the thoracic aorta? ()
A. Continue from the lower edge of the 5th thoracic spine to the aortic arch
B. Go down the left side of the spine and gradually inward along the midline in front of the spine
C. The front of the thoracic aorta is adjacent to the esophagus, left lung root, posterior pericardial wall, and diaphragm from top to bottom
D. The back is the spine, semi-singular vein and para-singular vein
E. On the right is the semi-singular vein, thoracic catheter and right mediastinal pleura
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What is correct about the description of the left vagus nerve? ()
A. Into the thoracic cavity between the left subclavian artery and the left subclavian vein
B. The left recurrent laryngeal nerve is emitted downward over the left front of the aortic arch
C. To the front of the left lung root
Down to the front of the esophagus to form a left esophageal plexus
E. At the lower end of the esophagus, it merges into the left trunk of the vagus nerve.
Which of the following does not belong to the structure of the mediastinum ()
A. Thoracic catheter
B. Aorta
C. Trachea
D. sternum
E. Thymus
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
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