🧠 Structure of the Kidney 📍 Basic Overview Feature Description Location Retroperitoneal space (between T12–L3 vertebrae) Number Two (left is slightly higher than the right due to liver on the right side) Shape Bean-shaped Size ~10–12 cm (length), 5–7 cm (width), 2.5–4 cm (thickness) Weight ~120–170 grams in adults Color Reddish-brown 🔍 External Structure of the Kidney 🧬 Internal Structure (Longitudinal Section) The kidney is divided into three main internal