Medical Definition of sphincter of Oddi. : a complex sphincter closing the duodenal orifice of the common bile duct.
Human blood is made of plasma (makes up 54.3% of the blood volume) and several kinds of cells (corpuscles); these are 1  â. erythrocytes (RBC) â 45% of blood by volume. 2  leukocytes (WBC) â 0.7% of blood by volume. 3  thrombocytes (platelets) â minute amounts.
In adults, blood contains about 0.8 gallons (3 liters) of plasma, red blood cells, white bloods cells and platelets. Vitamins, electrolytes and other nutrients are dissolved in the blood, and are carried to the body's cells and organs. For instance, gold makes up about 0.02 percent of human blood.