Question: The spleen is part of what system in the human body?
Answer: immune system
Disambiguated annotations:
qaPairs: question: The spleen is part of what major systems in the human body?
answer: Lymphatic system
Immune system (Lymphatic system)
immune system
question: The spleen is center of activity of what specific immune system in the human body?
answer: MPS
macrophage system
mononuclear phagocytic system (MPS)
reticuloendothelial system
mononuclear phagocyte system
mononuclear phagocytic system