part of part of circulatory system lymphoid system lymphatic part of lymphoid system MESH:D008208 lymphatic tree system SCTID:362597000 UBERON:0006558 VHOG:0001761 An organ system subdivision that is a network of vessels capable of removing accumulating protein and fluid from the interstitial space and returning it to the vascular space. In some species, this network is connected to the immune system via lymph nodes and lymphocyte-producing organs, with the whole being the lymphoid system. EMAPA:18248 FMA:7162 lymphatic system AAO:0010522 MA:0002961 CALOHA:TS-2024 lymporeticular system EFO:0000870 Wikipedia:Lymphatic_system organ system subdivision