1. receives blood from the head and arms and chest and empties into the right atrium of the heart; formed from the azygos and both brachiocephalic veins; [syn: superior vena cava, precava]
WordNet (r) 3.0 (2006):
precava
n 1: receives blood from the head and arms and chest and empties
into the right atrium of the heart; formed from the azygos
and both brachiocephalic veins [syn: superior vena cava,
precava]