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.
Composition[edit] The human body is mainly made up of a small number of elements. The main four elements of nitrogen, hydrogen, carbon and oxygen make up 96 %. The human body is composed of elements including hydrogen, oxygen, carbon, calcium and phosphorus.