Tag: Spleen function

While the human body may appear symmetrical from the outside, its internal organ placement is not. In fact, several critical organs, including many that answer the question *What main organ is on your left side?*, are situated predominantly on the left side of the body.

While the kidneys and spleen are physically distinct organs, they are linked by peritoneal ligaments, notably the splenorenal ligament. This anatomical proximity hints at a more complex, systemic relationship, which can become especially apparent during certain disease states.

The human spleen, an often-overlooked organ, filters the body's entire blood supply, recycling aging blood cells and storing immune defenses. This fist-sized organ is responsible for vital functions related to immunity and blood health, far beyond being a simple filter.

The average red blood cell lives for approximately 120 days before it needs to be removed from circulation. This critical task is a primary function of the spleen, an organ that acts as the body's meticulous filter for red blood cells.

Often overlooked, this fist-sized organ is a powerhouse of the immune system. This authoritative guide breaks down exactly **what is the spleen in the human body** and why it is a critical player in your overall health.

Every second, your body recycles and replaces millions of aging red blood cells with new ones, a testament to its remarkable efficiency. This constant renewal process answers the fundamental question, "Where does old blood go?" as your body works tirelessly to salvage and reuse its components.

The spleen, a fist-sized organ often overshadowed by more well-known organs, is a critical component of your lymphatic system. Understanding **which side is your spleen on** is the first step toward recognizing its importance for your immune function and blood health.