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
Which fold of GIT is NOT permanent:
assistant
The correct answer is  Ruga are the mucosal folds present in the stomach which disappear on distension, hence are not permanent. Plicae semilunaris/circulares are circular folds of mucous membrane and are permanent (not obliterated by distension).