Hoarseness and a loss of voice are caused by problems with the vocal cords in the larynx. Problems with the vocal cords are common and can be caused by a variety of things. Treatment can help recover your voice faster which may reduce sick time and improve your quality of life.
Your body is composed of three types of muscle: skeletal muscle, smooth muscle, and cardiac muscle. Skeletal muscle makes up 40 percent of your total body weight, and smooth muscle and cardiac muscle each make up 5 percent of total body weight.Your muscles must contract in order to facilitate vital bodily functions.lthough skeletal muscles and smooth muscles serve very different functions, both muscle groups use the same mechanism of contraction called the sliding filament model.
C. There are no sarcomere structures, but filaments of actin and a type of myosin are present. Thus, contraction is much less organized and occurs more slowly than it does in striated or cardiac muscle. Another reason for this slower contraction is that smooth muscle cells do not contain a transverse tubule system.ardiac muscle is capable of involuntary, strong, rhythmic contractions. C. Smooth muscle-this muscle is not striated and is found in the walls of the visceral organs. Mononucleate cells. In addition to contraction, smooth muscle cells synthesize collagen, elastin, and proteoglycans (like fibroblasts).