The lymphatic system
is a defense system for the body. It filters out organisms that cause disease, produces white blood cells
, and generates disease-fighting antibodies
. It also distributes fluids and nutrients
in the body and drains excess fluids and protein so that tissues
do not swell. The lymphatic system is made up of a network of vessels that help circulate body fluids. These vessels carry excess fluid away from the spaces between tissues and organs and return it to the bloodstream.