Definition
The lumbar vein drains blood from the lumbar region of the back (lower back). Think of it as a drainage pipe for your lower back muscles and tissues 💧. These veins run along the lumbar vertebrae. They connect to the inferior vena cava on the right side. On the left side, they usually connect to the ascending lumbar vein or the left renal vein. They ensure blood flows back to the heart ❤️ from the lower back. This helps maintain proper circulation and function in that area.