Azygos Vein
An unpaired vein that drains blood from the posterior abdominal wall, thorax, and mediastinum.
Azygos System
A system of veins that collects blood from the posterior body wall and drains it into the superior vena cava.
Azygos Nerve
A small nerve that innervates the azygos vein.
Azygos Esophageal Hiatus
An opening in the diaphragm through which the azygos vein passes.
Azygos Veins
A group of veins that drain blood from the posterior abdominal wall, thorax, and mediastinum.
Azygos Venous System
A system of veins that collects blood from the posterior body wall and drains it into the superior vena cava.