Free Vision Screenings for Infants and Toddlers. The early years of life from birth until age five are crucial for a childâs visual development and eye health. The American Optometric Association recognizes how important it is to get your baby's vision off to a good start.
atrium(Noun) An upper chamber of the heart that receives blood from the veins and forces it into a ventricle. In higher vertebrates, the right atrium receives blood from the superior vena cava and inferior vena cava, and the left atrium receives blood from the left and right pulmonary veins.
Word Origin and History for atrium Expand n. 1570s, from Latin atrium central court or main room of an ancient Roman house, room which contains the hearth, sometimes said (on authority of Varro, De Lingua Latina) to be an Etruscan word, but perhaps from PIE *ater-fire, on notion of place where smoke from the hearth escapes (through a hole in the roof).