Term: caudal hematopoietic tissue macrophage activation involved in immune response
Name: caudal hematopoietic tissue
Synonyms:
Definition: Tissue that lies between the caudal artery and the caudal vein plexus where definitive hematopoiesis occurs after 48hpf and before the hematopoietic progenitors migrate to the thymus and kidney.
Ontology: Anatomy Ontology [ZFA:0005898]

Name: macrophage activation involved in immune response
Synonyms: macrophage activation during immune response, macrophage polarization involved in immune response
Definition: A change in morphology and behavior of a macrophage resulting from exposure to a cytokine, chemokine, cellular ligand, or soluble factor, leading to the initiation or perpetuation of an immune response.
Ontology: GO: Biological Process [GO:0002281]    QuickGO    AmiGO