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: Pathology
[{'content': 'Organ most vulnerable to ischaemic due to shock? \nSelect and explain. \nA. Lungs, B. Adrenals, C. Kidney, D. Hea', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Hea o The susceptibility of a tissue to hypoxia influences the likelihood of infarction. o Neurons are most sensitive to hypoxia (irreversible changes develop in 3-4 minutes) followed by myocardial cells (irrversible changes develop in 20-40 minutes). o Fibroblasts are amongst the most resistent cells to hypoxia.", 'role': 'assistant'}]