As cardiac impulse passes through the heart, electrical currents spread into tissue surrounding the heart and a small proportion spreads all the way to the surface of the body. If electrodes are placed on...
The conducting system offers the heart its automatic rhythmic beat, It transmits signals generated by the sinoatrial node to cause contraction of the heart muscle. It consists of cardiac muscle cells and conducting fibers...
Cardiac muscle is also called myocardium, in vertebrates, one of three major muscle types, found only in the heart. It is similar to skeletal muscle, it possesses contractile units known as sarcomeres; this feature,...
The heart keeps the blood moving throughout the body. Blood carries nutrients and oxygen throughout the body, it collects waste products and returns them to the liver and kidney for further processing and excretion,...