Lymphatic System

**Semantic type:** Body System

**Definition:** The anatomic system that includes the lymph nodes, lymphoid tissues in various organs (spleen, thymus, tonsils, gastrointestinal tract), and lymphatic vessels. It is part of the immune system that offers protection against infections.

**Synonyms:** - Lymphatic - Lymphatics - Lymphoid System - Reticuloendothelial System, Lymphatic System - lymphatic system