accessory hemiazygous vein

Definitions of accessory hemiazygous vein
  1. noun
    a vein formed by the union of the 4th to 7th posterior intercostal veins; empties into the azygos vein
    synonyms: accessory hemiazygos vein, vena hemiazygos accessoria
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    type of:
    vein, vena, venous blood vessel
    a blood vessel that carries blood from the capillaries toward the heart
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