Lymphatic System

Fluid drainage, lymph node filtering, and immune surveillance
Flow rate: 40%

Lymph Flow

40%

~2–4 L/day returns interstitial fluid to circulation

Pathogens

0

Bacteria/virus particles circulating in lymph

T-cells Active

0

Naive T-cells activated upon antigen presentation by DCs

Antibodies

0

B-cell plasma cells secrete ~1000 antibodies/second each