This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Heart: Rhythmical Excitation of the Heart, Subject name: Physiology
Conduction velocity is maximum in- 
Select and explain. 
A. Bundle of His, B. Purkinje System, C. Ventricular muscles, D. Atrial pathway
B: Purkinje System
Answer: B: Purkinje System 
Explanation: Ans. is 'b' i.e., Purkinje System Cardiac tissueConduction velocity (meter/second)SA nodeInteatrial pathwaysAtrial muscleAV nodeBundle of HisPurkinje systemVentricular muscle0 [?] 0510 [?] 300 [?] 05 (minimumQ)14 (maximumQ)1