Oesophagus - vasculature Flashcards
where does the thoracic part of the oesophagus receive its arterial supply from?
from branches of the thoracic aorta and the inferior thyroid artery (a branch of the thyrocervical trunk)
what is the venous drainage of the thoracic oesophagus region?
via branches of the azygous veins and the inferior thyroid vein
where does venous drainage drain into?
systemic circulation
which artery supplies the abdominal oesophagus region?
left gastric artery and left inferior phrenic artery
what is the left gastric artery a branch of?
coeliac trunk
what are the 2 routes of venous drainage of abdominal oesophagus? (destination)
- to portal circulation
2. to systemic circulation
what drains the abdominal vasculature into the portal circulation?
the left gastric vein
which vein drains the abdominal vasculature into the systemic circulation?
azygous vein
what does the portal and systemic circulation drainage routes form?
porto-systemic anastomosis
what is the porto-systemic anastomosis?
a connection between the portal and systemic venous systems