» Hila redirects here. For the Israeli village, see Mitzpe Hila.A hilum (formerly called a hilus)'s a depression or pit where structures are attached. In human anatomy, the hilum's part of an organ where structures such as blood vessels and nerves enter. The hilum of kidney (admits the renal artery, vein, ureter, and nerves)'s the medial depression for blood vessels and ureter to enter the kidney chamber. splenic hilum hilum of lung hilum of lymph node In botany, the hilum's a scar where… (More on Hilum)