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
Posterior epistaxis occurs from:
assistant
The correct answer is  Woodruff's Plexus - Site of posterior epistaxis in adults. Plexus of veins situated inferior to posterior end of inferior turbinate Ref: Dhingra 7e pg 197.