Lymphatic and immune in 3D
Lymphatic vessels that collect the extra fluid from the tissues (about 3 liters a day) and return it to the veins. The lymph nodes, spleen, thymus and…

Explained for every age
For kids (7–11)
A second network of pipes that collects the water that leaks out of the blood and brings it back. Along the way, filters called lymph nodes trap germs.
For teens (12–16)
Lymphatic vessels that collect the extra fluid from the tissues (about 3 liters a day) and return it to the veins. The lymph nodes, spleen, thymus and tonsils are defense centers where lymphocytes recognize microbes.
Pre-Med (17+)
Network of lymphatic capillaries, vessels and ducts (thoracic and right lymphatic) that drains 2–4 L/day of interstitial fluid and absorbs lipids (lacteals). Primary lymphoid organs (bone marrow, thymus) and secondary lymphoid organs (lymph nodes, spleen, MALT). Anatomical basis of adaptive immunity and a route of tumor spread.
What you can explore
Thoracic ductCisterna chyliRight lymphatic ductLymphatic trunksLymph nodes of head and neckSupraclavicular lymph nodesLymph nodes of axilla and upper limbLymph nodes of thoraxTracheobronchial lymph nodesLymph nodes of abdomenSuperior mesenteric lymph nodesLymph nodes of pelvis and lower limbInguinal lymph nodesSpleen (immune role)Thymus (immune role)Palatine tonsils
Missions
- The hidden guardians Explorer
- The river of lymph Discoverer
- Drainage, sentinels and tolerance Pre-Med
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