INBDE (Integrated National Board Dental Examination) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Where do the lymph from the upper left and lower body all drain?

Thoracic duct
Right lymphatic duct
Left jugular vein
Left brachiocephalic vein

The correct answer is: Thoracic duct

The lymph from the upper left and lower body all drain into the thoracic duct. The thoracic duct is the largest lymphatic vessel in the body and is responsible for draining lymph from the left side of the head, neck, thorax, upper limb, and the entire lower body. It then empties into the left subclavian vein, allowing the lymph to re-enter the bloodstream. This makes the thoracic duct the correct choice for where the lymph from the upper left and lower body converge. Options B, C, and D are not correct because the right lymphatic duct drains lymph from the right side of the head, neck, and thorax only. The left jugular vein and left brachiocephalic vein are blood vessels and are not directly involved in the drainage of lymphatic fluid.