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.
Right atrium. The right atrium is one of the four chambers of the heart. The heart is comprised of two atria and two ventricles. Blood enters the heart through the two atria and exits through the two ventricles.Deoxygenated blood enters the right atrium through the inferior and superior vena cava.The right side of the heart then pumps this deoxygenated blood into the pulmonary veins around the lungs.ight atrium. The right atrium is one of the four chambers of the heart. The heart is comprised of two atria and two ventricles. Blood enters the heart through the two atria and exits through the two ventricles.