Our bodies must continually
defend themselves against infection, cuts, and bruises. One body
system responsible for the body's defenses is the lymphatic system.
Without a healthy lymphatic system, we could die from a simple
infection or bleed to death from a small cut.
The lymphatic system also helps
maintain the level of fluid in the circulatory system. Because of
its roles, the lymphatic system is tightly associated with the
In this Lesson, we'll look at
the structure and roles of the lymphatic system. We'll also discuss
the different roles of the components of blood.