This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nerves of Lower Limb, Subject name: Anatomy
[{'content': 'A 67-year-old patient has been given a course of antibiotics by gluteal intramuscular injections after a major abdominal surgery.To avoid damaging the sciatic nerve during an injection, the needle should be inseed into which of the following areas? \nSelect and explain. \nA. Over the sacrospinous ligament, B. Midway between the ischial tuberosity andthe lesser trochanter, C. Midpoint of the gemelli muscles, D. Upper lateral quadrant of the gluteal region', 'role': 'user'}, {'content': 'Answer: D \nExplanation: To avoid damaging the sciatic nerve during an intramuscular injection, the clinician should inse the needle in the upper lateral quadrant of the gluteal region. The inseed needle in the lower medial quadrant may damage the pudendal and sciatic nerves. The inseed needle midway between the ischial tuberosity and the lesser trochanter may damage the sciatic and posterior femoral cutaneous nerves on the quadratus femoris. The inseed needle over the sacrospinous ligament may damage the pudendal nerve and vessels.', 'role': 'assistant'}]