Which of the following vessel does not cross the midline of the body:
The left gonadal vein drains into the left renal vein which crosses the midline to join inferior vena cava. All the other options (Left renal vein, left brachiocephalic vein and hemiazygous vein) cross the midline.Ref: Human Anatomy, B D Chaurasia, 4th Edition, Volume 2, Chapter 24, Page 297, 307, 316; Clinical Anatomy by Systems, Richard S. Snell, 2007 Edition, Page 166, 167, 840.
Left gonadal vein
Left renal vein
Left brachiocephalic vein
Hemiazygous vein