azygos /az·y·gos/ (az´ĭ-gus)
azygos.
1. unpaired.
2. any unpaired part, as the azygos vein.
az·y·gos ( z  -g s ,  -z gs)n. An unpaired anatomical structure. adj. or a·zy·gous ( -zg s) Not one of a pair, as a vein or muscle; occurring singly. |
azygos.
See azygous.
azygos
1. any unpaired part, as the azygos vein.
2. unpaired. Called also azygous.
azygos vein
a vein beginning in the abdomen and coursing in the dorsal mediastinum which returns blood from the thorax to the heart. The right azygos is found in most domestic animals (rarely the pig) while the left azygos is found in pigs and ruminants.
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