The lymphatic system defends against infection and disease by returning tissue fluid to the bloodstream. It consists of lymphatic capillaries that collect fluid from tissues, terminal ends that connect to lymphatic ducts, and lymphatic ducts that return the fluid to the venous system.

1. Lymphatic SystemLymphatic System

2. • Overarching
function:
defends against
infection and
disease, and
returns tissue fluid
to the bloodstream

5. Components of the Lymphatic System

7. Lymphatic
Capillaries

10. Terminal End of Lymphatic Vessel

13. Lymphatic Ducts and the Venous System