What is the difference between cardiac and skeletal muscles?

heart and skeletal muscles are two main types that can be found in the body. The skeletal muscle is usually associated with bones of structures called tendons, while the heart variety usually occurs only in the heart. Although there are some similarities in the structure, two types of muscle usually differ in cell arrangement. Skeletal muscle cells are usually arranged in multi -core cylindrical fibers and can be directly controlled by voluntary nerve signals from the somatic nervous system. Usually, compared to the heart muscle, they are usually shorter compared to the spindle and are connected through gaps that allow compounds to pass directly from one to another.

The muscles in the heart may be downloaded in response to signals from the organs' own nervous guidance. Drainage may increase or decrease, and there are usually only short periods of residues between rhythms. Cell structures called mitochondria are larger and more numerous in heart cells that muscle fibers. Heart cells can synthesizeMuch more adenosine triposphate (ATP) for energy. They can also convert lactic acid produced by skeletal muscles into ATP, which is produced when they are deoxygenated; If the heart muscle should go to this state, it could be damaged.

both cardiac and skeletal muscles have T-tubules that help perform electrical action potentials. Usually it is used to start the calcium flow so that the muscle can download. Although there are generally more t-tubulus in skeletal fibers, those forming heart muscles are wider than the types of skeletons. The heart and skeletal muscles also differ in that the fibers in the heart are connected through intercaled discs, which can also help synchronize contractions. In skeletal muscle fibers, t-tubules and structures are called z-prints by generally predominant connection points.

The common feature for heart and non -set muscles is that they have a striped structure. This structureIt usually has strong, thin and elastic fibers that form a working part of the muscle called sarcomers. The belts usually differ slightly from each other and often differ in density; Strong and thin fibers can interact because they are usually connected by cross bridges. Interactions between them and ATP generally allow the muscles to download.

Although the striped structure is common heart and skeletal muscles, heart cells can be branched. Two types of muscle are usually characterized by how they look under the microscope. Cell characteristics, as with many other tissues in the body, are usually analyzed by scientists, scientists and doctors to identify each type and separate normal from patients.