What is the function of the spleen in the body?

The spleen plays a critical role in both filtering blood and supporting immune functions. It acts as a blood filter, removing aged and damaged red blood cells as well as platelets. This is essential for maintaining healthy blood composition and preventing potential complications arising from the circulation of dysfunctional cells.

Additionally, the spleen is a key component of the immune system. It contains white blood cells, which help to identify and respond to pathogens such as bacteria and viruses. When an infection occurs, the spleen can produce more immune cells and facilitate their circulation throughout the body to combat the invading organisms.

Overall, the primary functions of the spleen in filtering blood and bolstering immune responses underscore its importance in maintaining overall health and disease defense.