31. Vertebrate smooth muscle was found to have evolved independently from the skeletal and cardiac muscle types. 32. The heart may fibrillate at first-this occurs because the cardiac muscle fibres are not contracting synchronously. 33. Long QT syndrome causes the cardiac muscle to take longer than usual to recharge between beats. 34. TnT and TnI in cardiac muscle are presented by forms different from those in skeletal muscles. 35. Desmin is a subunit of intermediate filaments in cardiac muscle , skeletal muscle and smooth muscle tissue. 36. The N-terminal region of TnT is alternatively spliced, accounting for multiple isoforms observed in cardiac muscle . 37. Amlodipine inhibits the movement of calcium ions into vascular smooth muscle cells and cardiac muscle cells. 38. Doctors diagnosed him with blockade of cardiac muscle and suggested he retire to preserve own health. 39. Cardiac muscle fibers are interconnected by intercalated discs, giving that tissue the appearance of a syncytium.40. Cardiac muscle has cross striations formed by rotating segments of A bands as observed with electron microscopy.
