This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
Inferior thyroid vein drains into 
Select and explain. 
A. Internal jugular vein, B. Superior vena cava, C. Brachiocephalic vein, D. EXternal jugular vein
C: Brachiocephalic vein
Answer: C: Brachiocephalic vein 
Explanation: The inferior thyroid veins emerge at the lower border of the isthmus. They form a plexus in front of the trachea and drain into the left brachiocephalic vein. Ref: BD Chaurasia's HUMAN ANATOMY, Volume 3, 4th edition.