Practice question

Pick C: Sphincter of Oddi. Thinking about Digestive System in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: Sphincter of Oddi is the option that correctly names the structure, process, or principle asked for in Digestive System. Hence Sphincter of Oddi is correct. Treat this as a building block for the rest of Digestive System; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions.