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Explore the architecture and functioning of cardiac muscle in this 14-minute educational video from NPTEL-NOC IITM. Learn about the unique features of heart muscle including striations, intercalated discs, and how electrical stimuli affect cardiac function. Discover the orientation of cardiac muscle fibers, the importance of desmosomes and gap junctions, and the arrangement of T-tubules and sarcomeres. Understand the mechanisms behind rhythmic contraction, membrane potential, ion permeability, and excitation-contraction coupling in the heart. The video also covers calcium antagonist drugs and their effects on cardiac function, providing essential knowledge for students of physiology and medical sciences.
