Sectional Anatomy of the Thorax

Question 1

Axial Section Interpretation

Answer 1

• Always looking from an inferior perspective (feet to head view)
• Anterior = top; Posterior = bottom

Question 2

Brachiocephalic Veins (Innominate Veins) Location

Answer 2

• Located superiorly within the superior mediastinum
• Lie anterior to the branches of the aortic arch (collateral branches of the aortic arch lie posterior to the left branch of the brachiocephalic vein)

Question 3

Appearance of Right Brachiocephalic Vein in Axial Cross Section

Answer 3

Vertical, appears circular in axial cross-section

Question 4

Appearance of Left Brachiocephalic Vein in Axial Cross Section

Answer 4

Oblique, appears oval shaped in axial cross-section

Question 5

Right Primary Bronchi Orientation in Axial Cross Section

Answer 5

Vertical, appears circular in axial cross-section

Question 6

Left Primary Bronchi Orientation in Axial Cross Section

Answer 6

Oblique, appears oblique and oval shaped in axial cross-

Question 7

Course of the Right Pulmonary Artery

Answer 7

Travels between the superior and middle secondary bronchi

Question 8

Course of the Left Pulmonary Artery

Answer 8

Ascends and lies superior to the left superior secondary bronchus

Question 9

Location of the Oesophagus

Answer 9

o Lies posterior to the trachea and the primary bronchi

Question 10

Location of the Pulmonary Trunk

Answer 10

o Anterior to the right and left primary bronchi