INBDE (Integrated National Board Dental Examination) Practice Exam

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Into what does the lymph from the upper right body drain?

  1. Right lymphatic duct

  2. Thoracic duct

  3. Right jugular vein

  4. Right brachiocephalic vein

The correct answer is: Right lymphatic duct

The lymph from the upper right body drains into the right lymphatic duct. This is the only option that is related to the lymphatic system, which is responsible for draining excess fluid and waste from the body's tissues. The thoracic duct is incorrect because it drains the rest of the body's lymph, not just the upper right portion. The right jugular vein and right brachiocephalic vein are incorrect because they do not play a role in lymph drainage. They are responsible for carrying blood from the head and upper body, not lymph fluid.