Hilum

The hilum is a specific area on organs like the kidney, lung, or spleen where blood vessels, nerves, and other important structures enter and exit. Think of it as a designated gateway or “gateway station” that allows theseStructures to connect with the rest of the body. In the kidney, for example, the hilum provides a passage for blood vessels bringing blood in and draining it out, as well as the tubes carrying urine. It’s essential for the organ’s function because it facilitates communication and nutrient exchange with the bloodstream and nervous system.