Smooth Muscles

Smooth muscles (also called involuntary muscles) are found in the walls of the stomach, intestines, blood vessels, and bladder. They move in a slow, automatic movement, always followed by contraction, then relaxation. Smooth muscles are stimulated by a special set of nerves ,belonging to the autonomic nervous system, and and by certain body chemicals. smooth muscles are usually in sheets or layers, with one layer on top of the other. They are controlled by your brain and do things without you even thinking about it. Smooth muscle fibers are smaller than skeletal muscle fibers. They have only one nucleus, unlike the skeletal muscles. Smooth muscles work together with your brain to help your body function.