• noun
• synonym
• antonym

• inferior vena cava (noun)
  1. receives blood from lower limbs and abdominal organs and empties into the posterior part of the right atrium of the heart; formed from the union of the two iliac veins
• superior vena cava (noun)
  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
• vena cava (noun)
  1. either of two large veins that return oxygen-depleted blood to the right atrium of the heart
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