Uberon definition : Pulmonary veins are blood vessels that transport blood from the lungs to the heart[GO].;
Uberon synonym : pulmonary venous tree organ part;
Uberon Homology note : On the other hand, in the sister clade of the actinopterygians, the sarcopterygians,
the gill circulation is supplemented with lung ventilation. As a result, the pulmonary
artery and vein and a functional ductus arteriosus arose as a major evolutionary innovation
from the sixth arch, giving the organism a flexible shunt to balance blood supply
to and from gills and lungs according to environmental conditions.[well established][VHOG];