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.
Facts about blood. The blood in your body. Your body has around 4-6 litres (8.5-12.5 pints) of blood, made up of red blood cells, white blood cells and platelets, in a liquid called plasma.There are four main blood groups-A, B, AB and O. Each of these can be positive or negative, so there are eight different variations of blood in total.ospitals and doctors need donated blood to treat a lot of different illnesses, and it's also used in most surgical operations. On most days, there is less than a week's supply of blood in the UK's blood banks.