Smooth muscle cells are a type of muscle cell found in the walls of various organs and structures within the body, including blood vessels, the digestive tract, and the respiratory system. These cells are non-striated, meaning they do not have the obvious banding pattern seen in skeletal muscle cells. Smooth muscle cells are responsible for regulating the contraction and relaxation of the smooth muscle tissue, which helps to control the movement of substances through these organs and structures. Research on smooth muscle cells focuses on understanding their structure, function, and role in various physiological processes, as well as their potential involvement in diseases such as hypertension, asthma, and gastrointestinal disorders. This research may lead to the development of novel therapeutic strategies for treating these conditions.