Review Question - QID 109413

A 45-year-old woman comes to the physician’s office with complaints of clumsiness. She feels like she is tripping over her feet more often, and she recently fell and sprained her wrist. Her medical history is significant for well-controlled diabetes. She has been a strict vegan for over 20 years. She lives at home with her husband and two children. On exam, she appears well-nourished. She has diminished proprioception and vibration sense in both her feet. She has a positive Romberg sign. She has diminished Achilles reflexes bilaterally. Which of the following tracts are most likely damaged in this patient?