USES: This medication is an antihistamine that treats symptoms such as itching, runny nose, watery eyes, and sneezing from  hay fever  and other allergies. It is also used to relieve itching from hives. Loratadine does not prevent hives or prevent/treat a serious allergic reaction (e.g., anaphylaxis). Therefore, if your doctor has prescribed epinephrine to treat allergic reactions, always carry your epinephrine injector with you.
Arteries carry blood away from the heart and veins carry blood towards the heart. The vena cava brings deoxygenated blood from the body towards the heart. However, the coronary artery carries oxygenated blood to the myogenic heart muscle.
carry deoxygenated blood to the heart [except pulmonary veins]; veins, with the exception of the pulmonary vein, carry blood that has been used by body tissues, back to the heart; veins carry blood and waste products to the heart where these will be processed through the lungs and given oxygen again.arry oxygenated blood from heart [except pulmonary arteries]; arteries, with the exception of the pulmonary artery, carry blood away from the heart. They bring blood that is rich in oxygen to the body.