inferior vena cava: 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
vena cava: either of two large veins that return oxygen-depleted blood to the right atrium of the heart
forbidden fruit: originally an apple from the tree of knowledge of good and evil in the Garden of Eden; it is now used to refer to anything that is tempting but dangerous (as sexuality)