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.
Different Types of Blood Cells and Their Roles in the Human Body Blood is a mixture of two things: cells and plasma. The heart pumps blood through the arteries, capillaries and veins to provide oxygen and nutrients to every cell of the body. The blood also carries away waste products. The adult human body contains approximately 5 liters of blood. It makes up 7 to 8 percent of a person's body weight.