Aspartame was first approved in the United States in 1981 and is one of the most widely used artificial sweeteners. When metabolized by the body, aspartame is broken down into two common amino acids, aspartic acid and phenylalanine, and a third substance, methanol.
Plasma is the liquid part of the blood. Arteries are blood vessels that carry oxygen rich blood away from the heart. Capillaries are tiny blood vessels that connect arteries to veins. Nutrients, oxygen and wastes pass in and out of your blood through the capillary walls.Veins carry blood back toward your heart.rteries are blood vessels that carry oxygen rich blood away from the heart. Capillaries are tiny blood vessels that connect arteries to veins. Nutrients, oxygen and wastes pass in and out of your blood through the capillary walls. Veins carry blood back toward your heart.
Confidence votes 1.2K. The only veins in an adult that carry oxygenated blood are the pulmonary veins, which carry blood from the lungs to the heart after it has been oxygenated. All other veins in the body carry relatively de-oxygenated blood.However in fetal circulation, the umbilical vein also carries oxygenated blood.he pulmonary veins carry oxygenated blood from the lungs, back to the left atrium so â¦ it may be pumped through the left ventricle into the aorta and out into the arterial circulation.