Where is the spleen located in the human body?

The spleen is located in the abdominal cavity, specifically in the upper left quadrant of the abdomen, beneath the diaphragm. It plays a crucial role in filtering blood and is involved in immune system functions. Being situated to the left of the body allows it to interact with other important organs in that area, such as the stomach and left kidney.

While the spleen is indeed in the abdominal cavity, the most precise description is that it is to the left of the body under the diaphragm, which gives a clearer understanding of its anatomical position. The thoracic cavity does not contain the spleen, as it mainly houses the heart and lungs. Meanwhile, the idea of the spleen being to the right of the body is incorrect, as its true location is distinctly on the left side.