The heart is a vital organ in the human body whose job is to pump blood throughout the body. So that the process of blood circulation in the body can run optimally, it needs assistance from the heart muscle to carry out its functions. The heart muscle is a constituent of the heart wall and has the function to pump blood, both to the heart and vice versa, so that blood circulation occurs. In the heart, there are special nerves that play a role in regulating the uniform rhythm of the heartbeat so that the function of the heart pump in maintaining blood circulation can run properly. In general, the heart muscle has the ability to contract similar to skeletal muscle. But in the heart, these muscle cells work together with the heart's nerve tissue to support the process of contraction of the heart's organs on a regular basis. Unlike skeletal muscle that can be consciously controlled, the heart muscle will continue to work automatically, this is the main differentiator with stria