Parts of Nervous System. Nervous System: Nervous system is the chief controlling and coordinating system of the body. It controls and regulates all activities of the body, whether voluntary or involuntary, and adjusts the individual (organism) to the given surroundings.
Compared to skeletal muscle, smooth-muscle cells are small. They are spindle-shaped, about 50 to 200 microns long and only 2 to 10 microns in diameter. They have no striations or sarcomeres. Instead, they have bundles of thin and thick filaments (as opposed to well-developed bands) that correspond to myofibrils.
Answered by The Community. Making the world better, one answer at a time. Generally, skeletal muscle is voluntarily controlled and smooth muscle is not. Some structures have a combination of both. For example, the bladder is made up of smooth muscle and consists of some skeletal muscle at the sphincter which is capable of holding it until you are ready.