Oesophagus - vasculature

Question 1

where does the thoracic part of the oesophagus receive its arterial supply from?

Answer 1

from branches of the thoracic aorta and the inferior thyroid artery (a branch of the thyrocervical trunk)

Question 2

what is the venous drainage of the thoracic oesophagus region?

Answer 2

via branches of the azygous veins and the inferior thyroid vein

Question 3

where does venous drainage drain into?

Answer 3

systemic circulation

Question 4

which artery supplies the abdominal oesophagus region?

Answer 4

left gastric artery and left inferior phrenic artery

Question 5

what is the left gastric artery a branch of?

Answer 5

coeliac trunk

Question 6

what are the 2 routes of venous drainage of abdominal oesophagus? (destination)

Answer 6

1. to portal circulation

2. to systemic circulation

Question 7

what drains the abdominal vasculature into the portal circulation?

Answer 7

the left gastric vein

Question 8

which vein drains the abdominal vasculature into the systemic circulation?

Answer 8

azygous vein

Question 9

what does the portal and systemic circulation drainage routes form?

Answer 9

porto-systemic anastomosis

Question 10

what is the porto-systemic anastomosis?

Answer 10

a connection between the portal and systemic venous systems