Diagram Of Smooth Muscle. Smooth muscle makes up the walls of hollow organs respiratory passageways and blood vessels. The cells are spindle shaped and the nucleus is central.
Figure 2 Diagram of smooth muscle contraction Relaxation of smooth muscle requires the myosin head to become dephosphorylated which is mediated by myosin light chain phosphatase. Multiunit smooth muscle a type of smooth muscle found in the walls of blood vessels. In smooth muscles the actin and myosin filaments are arranged in stacked patterns with across cells.
Within single-unit muscle the whole bundle or sheet of smooth muscle cells contracts as a syncytium.
It is divided into two subgroups single-unit and multiunit smooth muscle. Smooth muscles are structurally the simplest of all muscles types. Smooth muscle fibers ____x smaller than fibers in skeletal muscle. Smooth muscle consists of thick and thin filaments that are not arranged into sarcomeres giving it a non-striated pattern.
