INBDE (Integrated National Board Dental Examination) Practice Exam

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The subclavian and IJV veins feed into which veins?

  1. Brachiocephalic veins

  2. Thoracic duct

  3. Common facial veins

  4. Lymphatic duct

The correct answer is: Brachiocephalic veins

The subclavian veins and internal jugular veins feed into the brachiocephalic veins, which are a pair of large veins located in the upper chest area. These two veins are incorrect because the thoracic duct drains into the left subclavian vein, the common facial veins do not receive direct input from the subclavian and IJV veins, and the lymphatic duct drains into the subclavian vein on the right side. Therefore, A is the correct answer.