OntologiesxaoclassesXAO:0003152   
JSON document
immune system
http://purl.obolibrary.org/obo/XAO_0003152

Anatomical system that protects the body from foreign substances, cells, and tissues by producing the immune response and that includes especially the thymus, spleen, lymphoid tissue, lymphocytes including the B cells and T cells, and antibodies.

Also appears inxpo