This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Hippocampus is connected to the hypothalamus by which structure? \nSelect and explain. \nA. Fornix, B. Mammilary bodies, C. Median forebrain bundles, D. Septal nuclei', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The fornix is a large bundle of mainly projection fibres which connect the hippocampus with the mammillary body. It constitutes the sole efferent system of the hippocampus.\nThe medial forebrain bundle (MFB), is a part of the reward system, containing fibers from the basal olfactory regions, periamygdaloid region septal nuclei, as well as fibers from the ventral tegmental area.', 'role': 'assistant'}]