Which organ is responsible for filtering dead red blood cells from the blood?

The liver plays a crucial role in filtering dead red blood cells from the blood. It contains specialized cells called Kupffer cells which are part of the immune system and act as macrophages, effectively engulfing and breaking down old or damaged red blood cells. This process is essential for recycling iron and heme, components of hemoglobin, and it also helps maintain overall blood health and balance.

In addition to this primary function, the liver also processes nutrients, detoxifies harmful substances, and produces important proteins for blood plasma. By efficiently filtering out dead red blood cells, the liver contributes to the maintenance of a healthy red blood cell count and overall blood homeostasis.

Other organs mentioned, such as the kidneys, primarily function in filtering waste products from the blood and managing fluid balance rather than directly processing red blood cells. The cerebellum and cerebrum are parts of the brain involved in motor control and higher cognitive functions, respectively, and do not participate in blood cell filtration.