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: Physiology
[{'content': 'Two vessels are compared as shown belorv. Assuming constant pressure along both the vessels and linear flow pattern, what will be the flow across the vessel 1 compared to vessel 2? \nSelect and explain. \nA. 2 times, B. 4 times, C. 8 times, D. 16 times', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer- C. 8 timesPoiseuille Hagen FormulaF = (PA - PB) x (p /8) x (1/?) x (r4/L)Where,F= flowPA-PB = pressure difference between two ends of the tube? = viscosityr = radius of tubeL = length of tubeBecause flow is equal to pressure difference divided by resistance (R),R = 8?L/pr4', 'role': 'assistant'}]