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.
Capillaries Tiny blood vessels connecting arteries to veins. These  blood vessels carry oxygen and nutrients to individual cells. Capillaries are the smallest blood vessels â¦ in the body, and have  walls only one or two cells thick.apillaries Tiny blood vessels connecting arteries to veins. These  blood vessels carry oxygen and nutrients to individual cells.