An unpaired vein which in humans arises from the right ascending lumbar vein or the vena cava, enters the thorax through the aortic orifice in the diaphragm, and terminates in the superior vena cava; unlike humans, mice have a single and left-sided azygos vein that develops from the paired embryonic cardinal venous system and drains most of the right and left thoracic walls into the left anterior vena cava[MP]. [ MP:0011569 ]

Synonyms: azygos venous tree

This is just here as a test because I lose it

Term information


uberon_slim, pheno_slim

depicted by


editor note

check development relationships in different species

has related synonym

vena azygos