Question: State the function of spleen in human defence mechanism

Justa Mwangi answered on 16 Jul 2025:

The spleen plays a vital role in the human defense system by acting as a blood filter and an immune organ. It removes old or damaged red blood cells and other cellular debris from the bloodstream, preventing infections and maintaining blood health. Additionally, the spleen produces white blood cells (lymphocytes) and antibodies, which are crucial for fighting off infections and diseases.