To explain: The reason behind that spleen is considered a hematologic organ.
Concept introduction: Hematologic system comprises of blood, blood vessels, and blood-forming organs. The hematologic system plays a significant role in the hormone transport, immune, and inflammatory responses, fluid-electrolyte balance, regulation of temperature, and acid-base balance.
To explain: The reason behind that human can live without a spleen.
Concept introduction: Spleen is the lymphoid organ that serves as a site of fetal hematopoiesis. It act as blood filter and cleanses the blood by mononuclear phagocytes. The spleen is interconnected with many blood vessels that initiate the immune responses against the blood-borne microorganisms.
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