Thorax

Question 1

Left/Right brachiocephalic vein

Answer 1

Formed at root of neck by union of left/right subclavian and left/right internal jugular veins
Join to form superior vena cava

Question 2

Superior vena cava

Answer 2

contains all the venous blood from the head and neck and both upper limbs and is formed by the union of the two brachiocephalic veins
Vena azygos joins posterior aspect just before it enters the pericardium

Question 3

Azygos veins

Answer 3

consist of the main azygos vein, the inferior hemiazygos vein, and the superior hemiazygos vein

drain blood from the posterior parts of the intercostal spaces, the posterior abdominal wall, the pericardium, the diaphragm, the bronchi, and the esophagus

Question 4

Inferior vena cava

Answer 4

pierces the central tendon of the diaphragm opposite the eighth thoracic vertebra and almost immediately enters the lowest part of the right atrium

Question 5

Descending thoracic aorta branches

Answer 5

Posterior intercostal arteries
Pericardial, oesophageal and bronchial arteries