FMA71961 3D mesh
Spleen
A lymphoid organ in the upper left abdomen. It filters blood, removes aging blood cells, and participates in immune responses.
Lymphatic vessels return excess tissue fluid to the circulation. Lymph nodes and other lymphoid organs support immune surveillance and responses.
The BodyParts3D reference dataset models 3 primary lymphoid organ structures in this layer: the Spleen (FMA7196), Left lobe of thymus (FMA71195), and Right lobe of thymus (FMA71194). Detailed peripheral lymphatic vessel networks are not modeled as separate 3D meshes in this dataset and are noted for editorial scope.
Returns excess interstitial tissue fluid back to the bloodstream.
Supports immune surveillance and adaptive immune responses through lymphoid organs.
Filters blood in the spleen to remove aging blood cells and blood-borne antigens.
Provides the anatomical environment in the thymus for T-lymphocyte maturation.
Review the primary anatomical landmarks below. Click Learn more to open the dedicated page for each structure, or click Select in 3D to inspect it on the interactive 3D model.
A lymphoid organ in the upper left abdomen. It filters blood, removes aging blood cells, and participates in immune responses.
A bilobed primary lymphoid organ in the superior and anterior mediastinum composed of left and right lobes, supporting T-cell development.
The left anatomical lobe of the thymus situated in the anterior mediastinum superior to the pericardium.
The right anatomical lobe of the thymus in the anterior mediastinum.
Every anatomical structure assigned to the Lymphatic layer in atlas.json. Curated landmarks include a Learn more guide, and all 3 structures can be selected directly in the 3D viewer.
Launch the 3D viewer with the Lymphatic activated. Orbit the camera, use the Exploded View slider to separate overlapping pieces, and click individual structures to inspect their FMA reference ID and anatomical metadata.
You have not selected any structures in the Lymphatic inside the 3D viewer yet during this session. Click Explore in 3D or any structure card above to inspect a structure on the 3D model.
The spleen (FMA7196) is a lymphoid organ in the upper left abdomen that filters blood, removes aging blood cells, and participates in immune responses.
The thymus (FMA9607) is modeled in the anterior mediastinum as left and right lobes.
Lymphatic vessels return excess tissue fluid to the circulation while lymphoid organs support immune surveillance.
Lymphatic vessels return excess tissue fluid to the venous circulation, and the splenic vein drains the spleen into the hepatic portal system.
The splenic artery (branching from the celiac trunk) supplies blood to the spleen for filtration and immune monitoring.
Select an answer for each question below to verify your understanding of the lymphatic.