- 1. Provide defense, DIAPEDESIS = "through" + "walking"due to CHEMOTAXIS.
- ~Leukocytes squeeze out of capillaries -> into interstitial space -> into lymph fluid –fight infection or into lymph system
Recirculation (return of extracellular fluid to the circulatory system)
2) Regulate fluid balance - return fluid to circulatorysystem.
3) Transport nutrients, waste, & hormones into circulatory system (absorbs fat from digestion).
Lymph nodes: "filtering" organs.