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 pt. presents with defective adduction of the hip joint and pains in the hip and knee joint. Which nerve is involved
assistant
The correct answer is  A. i.e. Obturator nerveAdductors of thigh are mainly supplied by obturator nerveQ.A disease in hip joint may cause referred pain in knee & medial thigh because of their common nerve supply by obturator nerveQ.