system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 36-year-old man presents with the complaint of loose and watery stools for the past 3 days. He is now having bowel movements four to five times a day. He denies any blood or mucus in the stool. He also complains of abdominal pain and fatigue. Furthermore, he feels nauseous and does not feel like drinking anything. His urine is visibly yellow and low in volume. He recently returned from a trip to South America where he enjoyed all the local delicacies. He is most concerned about his urine color and volume. Which segment of the nephron is primarily responsible for these changes?
assistant
Loop of Henle