This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Development of GU system and Neuro-vascular supply of pelvis & perineum, Subject name: Anatomy
[{'content': 'A 37-year-old woman is suffering from carcinoma of the uterus(fundus area) . Cancer cells are likely to metastasize directly to which of the following lymph nodes?, \nSelect and explain. \nA. External iliac nodes, B. Internal iliac nodes, C. Superficial inguinal nodes, D. Aoic (lumbar) nodes', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The superficial inguinal nodes receive lymph from the buttocks, labium majora, upper uterus and the lower pas of the vagina and anal canal. These nodes have efferent vessels that drain primarily into the external iliac and common iliac nodes and ultimately to the lumbar (aoic) nodes. The internal iliac nodes receive lymph from the upper pa of the rectum, vagina, uterus, and other pelvic organs, and they drain into the common iliac nodes and then into the lumbar (aoic) nodes. Pa of uterus Draining lymph nodes Fundus Pre and para aoic lymph nodes Isthmus Round ligament lymphatics- superficial ingiunal LN Mid uterus External iliac LN lower uterus(cervix) everywhere except inguinal LN', 'role': 'assistant'}]