Which types of muscles are referred to as non-straited muscles?

Non-straited muscles are characterized by their smooth appearance and lack of visible striations or bands that are present in striated muscles. Smooth muscles, which are found in the walls of hollow organs such as the intestines and blood vessels, operate involuntarily and are responsible for various physiological functions like peristalsis and regulating blood flow. This smooth appearance is due to the arrangement of actin and myosin filaments, which are not organized into sarcomeres, unlike those in skeletal and cardiac muscles.

Skeletal muscles, in contrast, are striated and under voluntary control, while cardiac muscles, although striated, work involuntarily and are specific to the heart. Connective tissues do not possess muscle properties and serve a different role in the body by supporting, binding, or separating other tissues and organs. Thus, the term 'non-straited muscles' clearly applies to smooth muscles, highlighting their distinct structure and function within the muscular system.