The components along with functions of transport system in human beings are as:

Heart: It is a muscular pumping organ that helps to pump blood around the body.

Blood: The blood is a fluid connective tissue. It consists of a watery fluid called plasma, and three types of cells: red blood cells, white blood cells and platelets. Plasma helps in transporting food, carbon dioxide, salts and nitrogenous wastes in dissolved form. Red blood cells carry oxygen. White blood cells engulf bacteria and produce antibodies, which provide immunity against various disease-causing pathogens. Platelets help to clot the blood at the site of injury.

Blood vessels: There are three types of blood vessels. They are: arteries, veins and capillaries. These vessels help in transporting the blood in the body.

Lymph: It carries digested and absorbed fats from intestine and transports them to the blood. It also drains excess fluid from extra-cellular space back into the blood.