Difference Between Cardiac Muscle And Skeletal Muscle The heart pumps blood throughout the body through a network of tubes called arteries and veins. It has four chambers: right atrium, right ventricle, left atrium and left ventricle. Cardiomyocytes have long, thin cell bodies with many projections called T-tubules. Skeletal muscle tissue is made up of bundles of fibres called myofibers. These […]